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Home , Geology of India, Gumti River (Bangladesh), Northeast India, Sela Pass, Shillong, Yingkiong

1. Geological activities of GSI in North Eastern Region The North-Eastern Region (NER) of comprises a unique agglomeration, with a diversified geological set-up. The spectacular physiographic set up includes the stunning Himalayan mountain belt in the North, Plateau in the south, the Indo- Range in the east and the mighty Brahmaputra, forming the extensive . The diverse lithologic and tectonic ensemble calls for integrated geoscientific studies to identify and outline target areas pertaining to baseline data generation, resource evaluation, mitigation of natural hazards, environmental issues and water resource development projects. The rocks exposed in the North Eastern Region (NER) range in age from Precambrian to Recent.

2. of North Eastern Region The oldest record of north are the Proterozoic gneissic rocks comprised of , migmatites, metasedimentary bands, amphibolite, metadolerite and metapyroxenite. These rocks are present in the central part of Assam and different parts of . The Meso to Neo Proterozoic meta-volcano sedimentary sequence of Shillong Group of rocks represented by quartzite, quartzite/phyllite intercalation and quartz mica . These are exposed along the east central part of the and the Mikir Massif, unconformably over lying the gneissic rocks. Neo Proterozoic plutons equivalent to the Pan African orogeny have intruded both the Shillong Group of rocks and the gnessic rocks, along several regional tectonic lineaments. Basic intrusive in the form of sills and dykes designated as Khasi Green stones has intruded the gneisses and Shillong Group. In the Arunachal , Proterozoic Se La Group of rocks and Bomdila Group comprising of graphite , calc-silicate, marble, amphibolite, schistose quartzite, high grade schist, and migmatites are exposed above the MCT. Precambrian low to high grade gneissic rocks represented by the Daling Group, Darjeeling gneiss and Kanchenzonga gneiss respectively are present in . However, Chungthang Formation made up of quartzite, calc-silicate rock, marble, graphite schist and occasionally amphibolite, are considered to be the oldest rocks of Sikkim. Lingtse granite gneiss of Mesoprotezoic age has intruded the Chungthang Formation. The Miri Formation of Lower age made up of quartzite, and conglomerate are exposed in several parts of . The Miri Quartzite are considered to be older than the Gondowana Sequence. Group of Permo- age are exposed in discontinuous patches over a roughly E-W trending belt extending from the border in the west to the north of in the east. Along the western extent of both Meghalaya and Assam rocks of Lower Gondowana are exposed. The Gondowana formations are coal bearing in parts. Lichi Volcanics of Arunachal Pradesh are of Permo-Carboniferous age and comprise of different variants of basalts. Exposures of Gondowana have also been reported from Sikkim. Sung valley Alkaline Complex and Samchampi Alkaline complex of Meghalaya and Assam respectively are the intrusive features whereas Traps represent the volcanic phase of age. During the same period up thrusting of the eastern extremity of the has produced the Ophiolite Complex, which are exposed from Moreh () in south to Chiphur () in north for about 200 km. Similarly, along the Indus suture belt in Arunachal Pradesh the Mayodia Ophiolite Complex is exposed. During the north ward movement of Indian Plate and ultimate collision with Asian plate a thick sequence of shelf- slope-deep basin sediment as well as sediments of foreland basin of Himalayan orogeny had been deposited, represented by conglomerates, pebbly horizons, , shale, and intercalations belonging to Late Cretaceous to Miocene age (are exposed from Meghalaya up to ). The and Siwalik groups represents the Tertiary rocks in Arunachal Pradesh. Thick to very thick Quaternary sediments are found in Assam, Meghalaya, Manipur, Nagaland, Arunachal Pradesh and states. Recently the stratotype of the youngest stage of Geological Time Scale has been reported from a limestone cave in Meghalaya-the stage/age has also been named as Meghalayan Age (4200 years).

3. ACTIVITIES OF MISSION-I: BASELINE GEOSCIENCE DATA GENERATION

3.1 SURVEY & MAPPING Mission I activities of North Eastern Region aims at unravelling the complex geological history of this unique terrain along with mapping the unexplored places as well as new sections which are now exposed owing to developmental activities. A total of thirty four (34) nos. of items (Standard-31 & Service-3) have been taken up for FS 2021-22 by the different State Units. Eleven (11) STM (Specialised Thematic Mapping on 1:25000 scale) items have been taken up to cover an area of 2460 sq. km distributed in different states. These items were taken up with objectives of reporting new mineral occurrences and also to resolve the fundamental geological problems to work out the stratigraphy and tectonic setup of the region. The following geological problems are being worked upon. i. Proterozoic Basement (Assam Meghalaya Gneissic Complex -AMGC) - Cover (Shillong Group) relationship and their tectono-metamorphic evolution in Meghalaya Plateau as well as in Mikir Hills, Assam; ii. The structural fabric of Main Central Thrust (MCT) Zone in Sikkim Himalayas; iii. The relationship between the Ophiolites and their metamorphic sole in Manipur and Nagaland; iv. Tectono-metamorphic evolution in Higher Himalayan crystallines of Arunchal Himalaya; v. Paleoenvironmental conditions of deposition of Siwaliks in eastern Himalayas and Mahadek Formation in Meghalaya Plateau Under the National Geochemical Mapping Programme (NGCM), seventeen (17) items covering an area of 11839 sq. km have been taken up. Five (5) items have been taken up in the of western Meghalaya by SU: Meghalaya - three (3) items covering parts of and one (1) item in District has been taken up by SU: Tripura & Mizoram, three (3) items covering parts of Mon, Longleng and districts of Nagaland has been taken up by SU: Manipur & Nagaland, three (3) items covering parts of has been taken up by SU: Assam, one (1) item is being executed by SU: Arunachal Pradesh in parts of and SU: Sikkim has proposed one (1) item in parts of North District, Sikkim. Two (2) items on Geophysical mapping on gravity-magnetic mapping have been taken up in Obvious Geological Potential (OGP) area covering an area of 2800 sq. km in parts of Assam and Meghalaya States. One (1) item under Mission-IB PGRS have also been taken up covering an area of 700 sq. km in parts Meghalaya State to delineate high altitude Bauxites developed over AMGC. Area covered under different activities of Mission-I in GSI, NER

Activity Total Area Covered till Number of items Area taken up during FS 2020-21 (in sq. Km.) taken during FS 2021-22 (in sq. FS 2021-22 Km.) Specialized Thematic 28,293 11 2460 Mapping (STM) Geochemical Mapping 77163.8 17 11839 (GCM) Geophysical Mapping 27,620 02 2800 (GPM) PGRS 2, 60,518 01 700

4. ACTIVITIES OF MISSION-II: NATURAL RESOURCE ASSESSMENT (MINERAL EXPLORATION) The unique geological setup of makes it a potential destination for economic mineral exploration programmes. The thrust has been put towards strategic and rare metal mineral investigation programme as per national requirements. GSI has been involved in exploring Coal, Limestone/, Graphite, Lateritic bauxite, Gallium, Glass sand, copper and vanadium in the region. Beside this, occurrence of low-grade Iron , incidences of Nickel, Cobalt, Lithium, Molybdenum, Gold, Tin, Tungsten, Platinum Group of Elements (PGE) and Rare Earth Elements (REE) have been reported, which are being worked upon.

The resource estimated for different commodities by GSI, in NER till FS 2019-20. Commodity Resources estimated by GSI (in million tonnes) Limestone 14358 MT Iron 18.32 MT Graphite 3.57 MT Lateritic Bauxite 10.06 MT Gallium 87.5 tonnes Glass Sand 4.13 MT Copper 0.01 MT Vanadium 0.72 MT Coal 11.99 MT

4.1. Rare Earth Elements (REE) & Rare Metals (Strategic ) REE are the most important critical minerals globally and are paramount in controlling the geopolitical scenario. GSI, North Eastern Region has taken up several projects to explore REE mineralization potentials of the regoliths developed over the as well as the gneisses, in parts of Meghalaya, Arunachal Pradesh and Assam. The laterite capping is also being explored for REE. Encouraging values have been reported during FS 2019-21, which are being further explored. The pegmatite having 0.05 to 0.11 % molybdenum and 0.10 to 0.14 % REE values was observed at Helagog and Khaloibari areas of Khetri area, Kamrup (Metro) district of Assam. From Lodoso Block Arunachal Pradesh a maximum of 3% tREE has been reported from a mineralized zone of about 1km strike length and 40 m width, in FS 2020-21. A G4 stage investigation by SU: Meghalaya in FS 2020-21 has reported tungsten 1564 ppm and 3645ppm tREE from Manai- area. For FS 2021-22 four (4) G4 stage and one (1) G3 stage items have been proposed from the region to explore the potential of various strategically important commodities. SU: Arunachal Pradesh has one (1) item for reconnaissance survey for Tantalum & Caesium, in and one (1) item for reconnaissance survey of Lithium, Tin & Tungsten, in . One (1) G3 item for exploration of molybdenum and associated mineralization, along with another (1) G4 item for reconnaissance survey for REE mineralisation are being undertaken by SU: Assam in Kamrup (Metropolitan) and Karbi Anglong districts respectively. One (1) item for reconnaissance survey of tungsten and associated mineralization is being executed by SU: Meghalaya in the East district.

4.2. Precious Metals Globally it has been reported that ophiolite suits are a store house of various mineral commodities. From the Ophiolite suits of Nagaland and Manipur several occurrences of nickeliferrous laterite, chromium, PGE and associated base metals have been reported till date.

Detailed surface exploration along with scout drilling components have been proposed for FS 2021-22 to investigate the occurrences reported from Tengnoupal and Chandel Districts, Manipur. Reconnaissance survey has led to the identification of several metalliferous bodies of the dimension of about 800m x 75m has from Phek District, Nagaland during FS 2018-20. Proposals have been mounted to ascertain the subsurface potential of these occurrences during FS 2020-21. Orogenic Gold mineralisation associated with Pyrite, Chalcopyrite and Arsenopyrite has been reported from West , Arunachal Pradesh. During FS 2020-21, in total, four (4) mineralized zones have been identified in the study area with thickness ranging from 3-20 meters and strike lengths ranging from 20-150 m. Further, exploration for placer gold from basin, in North , Assam has been reinitiated. A total of fifty two (52) nos. (0.1mm to 0.4mm in size range) of gold nuggets/ flakes were recovered from the bulk samples mostly from the Corromore Formation. Total 2- 50 nos. of gold flakes/nuggets (0.1mm-0.5mm size ranges) have also been recovered from the PTS sample of channel bar and point bars of Subhansiri, Dirpai and Jiyadhol River. During FS 2021-22 a total of three (3) G4 stage and one (1) G3 stage exploration items are being executed by SU: Manipur & Nagaland, to explore the surface as well as subsurface mineralization potential of the Naga-Manipur Hills Ophiolite Suits. The aforesaid three (3) items have been envisaged to assess the Cr, Co, Ni, V, and base metals potentials along with Platinum Group of Elements. 4.3. Ferrous and Nonferrous elements During FS 2019-21 several projects had been under taken across the different states to the region to assess the mineralization potential of ferrous as well as non-ferrous metals based on the favourable geological set up and taking cue from base line data generated by Mission I activities. As a result of these investigation items very encouraging results of up to 52% total Fe2O3 has been reported from of Arunachal Pradesh. In the state of Arunachal Pradesh, very promising prospects of graphite has also been reported and till date a resource of 3.57 MT has already been estimated. Work involving drilling is being carried out in Lower Subansiri and West Siang districts of Arunachal Pradesh to further augment the resources. Kalamati Block from Arunachal Pradesh in FS 2020-21 has reported a mineralized zone of 700 m strike length with up to 350m width. Vanadium as high as 3105ppm and graphite with fixed carbon up to 8.6%, with associated Zn 3017ppm and Ni 788ppm. From Tato Block, Arunachal Pradesh for the first time two sulphide mineralized zones have been delineated in the last field season. During, FS 2020-21 graphite mineralization associated with the kaolinized and limonitized pegmatite veins having a strike continuity of 10-15m and an average width of 1.5m, has been reported form Chitre-Dhareli Block, West District, Sikkim, with Vanadium up to 1190ppm and Ni up to 1878 ppm. During FS 2021-22, in Meghalaya one item each has been taken up in the already explored Barapani Shear Zone, East Khasi Hills for reappraisal in and around Jalwagiri area, East Garo Hills to assess the base metal potentials at G4 level. 4.4. Industrial and Fertiliser Minerals Two (2) G2 stage exploration items are being carried out by SU: Assam, in Dima Hasao District, Assam to augment the limestone resource of Hundong Block. One (1) G4 stage item to assess the phosphorite mineralization potential in Siju area, Garo Hills has been undertaken by SU: Meghalaya. A total of three (3) G3 stage and two (2) G4 stage items have been undertaken by SU: Arunachal Pradesh to assess the graphite mineralization potential of the Khetabari Formation of the Bomdila Group, along with associated vanadium mineralization.

4.5. Regional Mineral Targeting During FS 2019-21 a project on Regional Mineral targeting over the Pan-African Granitic plutons of Shillong Plateau had been taken up as part of regional mineral prognostication. The objective is to assess the mineralization potential of the different Neo Proterozoic granitoids from the Meghalaya Plateau.

4.6. Shale Gas Reconnaissance survey for shale gas potentiality of Disang around Chedema-Dihoma area, District, Nagaland has been taken up in FS: 2020-21.

5. ACTIVITIES OF MISSION-III: GEOINFORMATICS (DISSEMINATION OF INFORMATION) Mission III in North Eastern Region is engaged in carrying out the following items besides technical co-ordination programme under the Regional Mission Head. The Technical Coordination (TC) Division monitors and co-ordinates the Mission III activities of the region and acts as the interface between the region and the Central Head Quarters (CHQ) pertaining to Mission III activities.

5.1. Mission IIIA: Data repository management, Advanced spatial data system, IT infrastructure and connectivity The Geo-Informatics Divisions of all State Units and Geodata Division of Regional Head Quarter (RHQ) are providing support for handling the modules in OCBIS in the region with the help of CHQ. The Geodata Division also maintains LAN/WAN of the region, provides infrastructural and IT-related assistance as well as portal related assistance to State Units and Regional Headquarter.

5.2. Mission III B: Publication and Library The Publication Division of NER renders service in the activity of acquisition, finalization and dissemination of information products generated from the Region and State Units as well as enrichment and maintenance of the library. Apart from these, the Publication division also caters to publication of GSI Records, e-news, Bulletin Series etc. In FS. 2019-20 Publication of Records of GSI, Vol. 153, Pt. 4 (Extended Abstract for F.S. 2018-19 of NER), Publication of third edition of Miscellaneous Publication No. 30 Pt. IV Vol. 1 (i) (Geology and Mineral Resources of Arunachal Pradesh), Manual of -Volume III: Economic Geology of North Eastern India were taken up. In FS. 2020-21, Publication Division of NER has taken up publication of Limestone Deposits of Litang valley, GSI Records, Vol. 154, Part 4, Extended Abstracts of Progress Reports for FS: 2019-20 of North Eastern India. Manual of Geology of India, Special Publication No. 77, Volume III: Economic Geology of North Eastern.

5.3. Mission III C: Map, Geoinformatics & Data integration Compilation, digitisation and uploading of geological layers are being carried out by NER under Project 50K GMS. NER is covered by 471 toposheets, out of which 378 sheets have already been uploaded to the portal by updating the new 16 digit geometry id under the project “Synthesis and Updation of all India unified legend for 50 K GMS” along with CHQ to achieve seamlessness of geology across the region. During FS 2016-17, the unified legend of NER up to litho-unit level for 378 sheets have been compiled and 16 digits geometry IDs for the litho-units have been assigned and submitted to Map Division, CHQ for uploading to the GSI portal. The Mission III is engaged in compilation of Geological Quadrangle Maps (GQM) and District Resource Maps (DRM) on 1:250,000 scale of different Districts, besides compilation of the maps generated through systematic geological mapping. During FS 2021-22 a total of 7 standard (3 in Publication Division and 4 in Map and compilation Division) was carried out.

6. ACTIVITIES OF MISSION-IV: FUNDAMENTAL & MULTIDISCIPLINARY GEOSCIENCES NER has a unique geospatial & geo-scientific setup in the world. The terrain has been carving its present geomorphology in collision tectonics of three plates, namely: 1) Indian 2) Chinese and 3) Burmese. The sedimentation, collision among plates & post deposition changes resulted into lofty mountain- chains, snow-clad-ridges, flanking steep-slopes and deep valleys. Brahmaputra, one of the mightiest rivers has an antecedent-course across the young mountain-chains, founded on the geological formations which have undergone folding, faulting, thrusting & intrusions. The high mountains have formed an ideal orographic trap for entered moist air to precipitate into the region. Since geological past the area has a history of earthquakes and active-tectonics. This ground-setup presents a challenge for tapping the natural resources, hazards and carrying out studies by the fundamental geo-scientists, geo-technicians, seismologists, climatologists & glaciologist and like set of scientists. Mission-IV, NER has undertaken the studies particularly in the field of the “Geo-technical and Geo-hazards Management; the “Fundamental & Geo-science Research; and climate change & ecosystems and polar studies, environmental, medical geology & bio-geohazards in the recent years.

6.1. Mission IV A: Geo-technical and Geo-hazards Management

6.1.1. Geotechnical Investigations NER may be termed as the ‘power house’ of India as it possesses hydropower potential, which is 30% of the total hydel potential of the country. The hydel potential of major river basin of Arunachal Pradesh like Kameng, Subansiri, Siang, Lohit and Dibang totals a production of 34,920 MW at 60% load factor (CEA) i.e. about 90% of the total hydropower resources of NER. GSI, NER is intimately associated with the development of hydel power in NER conducting geotechnical studies at various stages of geotechnical investigation to identify suitable sites for locating dams, powerhouses, selecting tunnel alignments and suggesting remedial measures during construction. Besides, Hydro-Electric project, GSI also carried out geotechnical investigation of various transport and communication projects such as Tunnel, -Sherathang-Nathula Highway (JNM Road) and Jiribam- Broad Guage Railway Line (NFR). During FS 2020-21, Engineering Geology Division, GSI, NER, Shillong has taken up 5 DPR stage Geotechnical Investigation of Katakhal Irrigation Project, , Assam, Myntdu-Leshka stage-II Hydroelectric Project, West Jaintia Hills District, Meghalaya, Umngot Hydroelectric project, East Khasi Hills and West Jaintia Hills District, Meghalaya, Haora and Champaicherra Irrigation Project, West Tripura District, Tripura and Selim H.E. Project, Meghalaya along with one Feasibility stage geotechnical investigation of Umngi Hydroelectric project, East Khasi Hills District, Meghalaya.

6.1.2. Landslide Susceptibility Mapping NER owing to its geology and is one of the landslide prone areas, may it be due to the lofty mountains or the road corridors along the unconsolidated loose sediments. GSI as the nodal organisation in the country for landslide related studies has continuously taking up such items at three different scales viz., Site Specific studies, Meso-scale studies and macro-scale studies – National Landslide Susceptibility Mapping (NLSM). As a part of covering the whole country (i.e. the landslide prone areas as Priority I and Priority II areas) GSI, NER has covered 1,52,159 sq. km area by taking up 72 NLSM items. During FS 2021-22, NLSM will be completed after taking up six programme in Arunachal Pradesh. Since inception, GSI, NER has taken up 19 Meso-Scale landslide studies on 1: 10000 scale along the most vulnerable road corridors like Kulinag Malidhar road section, Meghalaya, Baniargool and Chandipur Grant area in Karimganj & of Assam, Zubza-Kohima road section (NH-29), Kohima district, Nagaland etc. Site-specific landslide studies have been carried out with suitable mitigation measures at 17 locations in the whole of NER. During FS 2021-22, Six (6) National Landslide Susceptibility Mapping (NLSM) items, eight (8) Meso scale Landslide Susceptibility Mapping items and three (3) Site Specific landslide studies are being taken up; out of which eight items have been taken up on the request of .

6.1.3. Seismic Micro Zonation Studies Being part of one of the most tectonically active zones of world, i.e. the Himalayas, North Eastern Region is continually being affected by the earthquakes of different magnitudes. In an effort to substantiate the urban planning measures, GSI, NER had already carried out seismic microzonation studies of urban agglomerations like, Imphal, , Pasighat, , , , , , Gangtok, Agartala & Kohima. All the projects are taken up based on the request from the respective State governments. Cities of Silchar, Assam & Pasighat, Arunachal Pradesh have been covered during FS 2020-21. During FS 2021-22 seismic microzonation are being carried out in , Assam, , Tripura and Champai Mizoram. Apart from these, for study of neotectonics and active faults at the base of Himalayas studies have also been taken up.

6.1.4. Medical Geology GSI, NER has previously taken up several programme on Arsenic and Fluoride contamination studies for Medical Geology, mostly in the Bramhaputra plains. Study of Arsenic contamination in water and soil was carried out during FS 2012-13 in Jorhat district and in parts of TS 83B/7, 8, 11 & 15 in parts of and Marigaon districts, during FS 2013-14 and in FS 2014-15 in Nagaon and Morigaon district of Assam. Since last year, FS 2020-21 these studies have again been taken up based on the requests from state governments. During FS 2020-21 such FSP programme has been taken up (i) study the lead contamination in road dust and other different media in the Guwahati city, (ii) Arsenic and Fluoride contamination in different water sources in the cities of and Kohima, (iii) as well as the contamination in in the state of Tripura. During FS 2021-22, six projects have been taken up on environmental Geology. The items are: 1. Chemical, Mineralogical and lead isotopic characterization of road dust of Guwahati city in different seasons. 2. Integrated geo-environmental appraisal of Guwahati city to assess the causes and remedies of urban flood. 3. Geo-environmental appraisal to ascertain the impact of erosion caused by the Gumti River along Dumboor, Kurmachhara Amarpur, Udaipur, Telkajila and Sonamura subdivisions of Tripura. 4. Geo-environmental appraisal and river hazard zonation map to ascertain the impact of erosion, shifting and flooding caused by in Kailashahar, Kumarghat and Longthari valley sub-division in and Dhalai district of Tripura. 5. Geo-environmental studies to constrain the extent of arsenic, fluoride and other associated heavy metal contamination in water around Dimapur and Kohima city, Nagaland.

6.2. Mission IV A: Geo-technical and Geo-hazards Management

6.2.1. Studies on bank erosion by the Bramhaputra River Aimed towards public good geoscience, studies have been taken up to study the causative factors and possible mitigation measures for bank erosion by the mighty Bramhaputra River in the largest river island, i.e. the Island during FS 2020-21. Similarly during FS 2021-22, similar studies have also been taken up at Morigaon along the banks of Bramhaputra River. Based on the request of Govt. of Assam, one pilot scale programme has been taken up for identifying the probable location of bank failure that causes flooding in the Guwahati city during the season by the Bramhaputra river.

6.3. Mission IV C: Fundamental Geoscience As a part of activities on fundamental geoscience research, programme are being taken up from Petrology and Palaeontology divisions of GSI, NER 6.3.1. Petrological Studies Petrological research items have been taken up by NER on diverse themes, like, Proterozoic crust forming process, petrogenesis during Himalayan orogeny, intrusive mantle rocks like the alkaline-ultramafic complexes of Sung, Jashora and Samchampi, Iphiolite complexes, phases of felsic and basic volcanism etc. Earlier, during FS 2020-21, one research item has been taken up to study the petrological characterization and petrogenesis of Lichi and Abor Volcanics to deduce their stratigraphic position, occurring within the different structural entities of Arunachal Himalayas. Another research programme was taken up to study the petrogenersis of chromites in the ophiolite complex in the state of Manipur. During FS 2021-22, two (2) research items have been taken up on petrological characterization and petrogenesis of Chromite and associated ultramafic rocks of ophiolite in Manipur and Myodia Ophiolite Complex in Arunachal Pradesh.

6.3.2. Paleontological Studies During FS 2020-21, paleontological research work has been carried out to identify the records, in Mahadek Formation of Meghalaya Plateau and to study the faunal diversity. Another research programme was taken up to study the faunal diversity in the Oceanic Pelagic sediments, Disang and Barail Group sediments in Ukhrul and Chandel Districts of Manipur. During FS 2021-22, two Research items have been taken up (a) Faunal diversity and palaeoenvironment of the Upper Cretaceous Mahadek Formation of Meghalaya plateau particularly in Garo Hills districts and (b) Palaeontological studies of Oceanic Pelagic sediments, Disang and Barail Group sediments in Ukhrul and Chandel Districts of Manipur and its implication on constraining the stratigraphic age.

7. MISSION-V: TRAINING AND CAPACITY BUILDING GSI Training Institute (TI) organizes Region specific training programmes in NER for capacity building. During FS. 2021-22, fifteen (15) training programmes are conducted by Regional Training Institute (RTI), NER, Shillong, details of which are given in the following table:

Training Programmes in NER, RTI 1 Course on self-defense and Gender sensitization from 19th to 20th April 2021 2 Basic course on Quaternary geology and morphotectonic studies of fluvial system from 23rd to 28th April 2021 3 Basic Course on PGRS using ArcGIS for pre-field studies 4 Training on exploration for critical minerals in Northeast Himalayas 5 Refresher course on Transect mapping in Arunachal Himalayas 6 Refresher course on Site specific Landslide investigations 7 Training on Neotectonics and active fault studies 8 e-Training on Urban Geology 9 Training on use of as Rajbhasha 10 e-Course on PFMS, IT and Bhavishya ( NPS) 11 e-Course on Financial rules, GFR, DFPR and GEM. 12 Training on Administration, Personal Management and Vigilance for JTS/STS including Group-B Gazetted Officers 13 Basic course on soft skills 14 Training on Administration, personal management and vigilance for Group B & C officials 15 Field geological mapping in sedimentary terrain for ONGC officials

8. Budget and expenditure of the North Eastern Region for the Financial Year 2020-21 Sl. Name of GSI Mission / Activity Allocation for NER Actual expenditure in No. in BE / RE (2020- NER (2020-21 up to 21) Dec 20) (Rs. In Lakh) (Rs. In Lakh) 1 Survey & Mapping Scheme (Mission-I) 80.00 35.51 2 Mineral Exploration Scheme (Mission-II) 363.85 323.19 3 Information Dissemination Scheme 60.00 41.96 (Mission-III) 5 Research & Development Scheme 103.00 58.38 (Mission-IV) 6 Human Resource Development Scheme 1.54 1.38 (Mission-V) 7 Special Component Plan for Schedule - - Caste (SCSP) 8 Tribal Area Sub Plan Scheme (TSP) 135.00 113.07 Administrative Support Activity including 7034.60 5510.66 minor works authorization to MoUD Total Revenue 7777.99 6084.15 9 Modernisation & Replacement Scheme 291 39.82 (MV and M&E) Grand Total ( Rev + Capital) 8068.99 6123.97