Summary

Mine Type	Open Pit
Status	Active
Commodities	Coal (thermal)
Mining Method	Truck & Shovel / Loader Surface miner
Production Start	...
Mine Life	...
Snapshot	Dipka Area Operation includes only one mine - Dipka opencast (Dipka Expansion Project) mine, which is the third biggest coal mine in India of non-coking (thermal) coal. Dipka OC mine is located in the south central part of Korba coalfield in Korba district of Chhattisgarh state of India. SECL's Dipka Megaproject successfully commenced operations by loading the first coal rake from its newly built Rapid Loading System and Silos 3 & 4 on 21st February 2025.

Deposit type

• Sedimentary

Summary:

Dipka OCP Expansion, a part of Dipka and Hardi Blocks, is located in the south-central part of Korba Coalfield in Korba district of Chhattisgarh. The Dipka mining block having an area of about 12.42 sq. km (excluding the area required for colony, road and infrastructure) and is bounded by latitudes 22°18'59" and 22°19'43" North and longitudes 82°30'47" to 82°33'34" East.

The Korba Coalfield, constituting the south-central part of the vast stretch of Gondwana sediments of Son-Mahanadi Valley, is located between the North Latitudes 22°15' and 22°30' and East Longitudes 82°15' and 82°55'. It has a total aerial extent of about 520 sq.km. It is elongated in an east-west direction and 64 km long and 4.8 km to 16 km wide. The southerly flowing Hasdeo river divides the coalfield into two parts, the western part being larger than the eastern part. The Dipka coal Block lies in the western part of the coalfield.

The strata in general have a southerly dip varying from 4° to 10° except in the north-eastern part of the coalfield in Rajgamar-Kesla sector where the dip is easterly. Rolling dips in confirmation with the anticlinal nature of the basins have also been recorded in Korba Coalfield. A prominent East-West strike fault dipping towards south divides the coalfield in two parts influencing the stratigraphic disposition. In the north of this fault, i.e. in Dilwadih-Banki-Surakachhar areas, only Karharbari with superior grade thin seams are preserved. In the south of this fault, i.e. in Dipka-Gevra-Kusmunda-Manikpur sector, the entire succession is preserved. The sedimentary strata in the Korba Coalfield are not affected by igneous intrusive.

The entire block is covered with soil. The thickness of the soil cover generally varies between 3m to 6m.

Description of Coal Seams
Occurrences of 3 coal seams have been proved in the block. These seams in descending orders are E&F, Upper Kusmunda, and Lower Kusmunda. Lower Kusmunda Seam occurs as a composite seam in the northern part of the block. However, it splits up in two sections, namely, Lower Kusmunda (Top Section) and Lower Kusmunda (Bottom Section) in the southern part of the block.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Commodity Production

Commodity	Units	2025	2024	2023	2022	2021	2020	2019
Coal (thermal)	Mt	....	....	....	....	....	....	35

Operational metrics

Metrics	2025	2024	2023	2022	2021	2020	2019
Coal tonnes mined	....	....	....	....	....	....	35 Mt
Waste	....	....	....	....	....	....	19.2 M cu.m

Personnel

Job Title	Name	Profile	Ref. Date
.......................	.......................		Sep 13, 2025