About National Coal Index (NCI):
- The NCI is a price index which reflects the change in the price level of coal in a particular month relative to the fixed base year.
- NCI combines the prices of coal from all the sales channels–Notified Prices, Auction Prices, and Import Prices.
- It has been rolled out on 4th June 2020, and the aim is to have an index that will truly reflect the market price.
- The concept and design of the index as well as the representative prices have been developed by the Indian Statistical Institute, Kolkata.
- It is released every month by the Ministry of Coal.
- The base year is FY 2017-18.
- The index is meant to encompass all transactions of raw coal in the Indian market.
- This includes coking and non-coking of various grades transacted in the regulated (power and fertilizer) and non-regulated sectors.
- Washed coal and coal products are not included.
- The NCI’s upward movement indicates rising demand for coal, which will encourage coal producers to take maximum benefit by further scaling-up domestic coal production to meet the growing energy demands.
- The downward trajectory of the NCI signifies a more equitable market, harmonizing supply and demand dynamics.
Q1: What is Coal?
Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible. Coal is black or brownish-black, and has a composition that (including inherent moisture) consists of more than 50 percent by weight and more than 70 percent by volume of carbonaceous material. It is formed from plant remains that have been compacted, hardened, chemically altered, and metamorphosed by heat and pressure over geologic time.
Last updated on August, 2026
→ UPSC Mains 2026 will be conducted on 21st, 22nd, 23rd, 29th and 30th August 2026.
→ Check out the latest UPSC Syllabus 2026 here.
→ UPSC Mains Admit Card 2026 is expected to be released in early August at upsc.gov.in or upsconline.nic.in
→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2027 for structured answer writing practice, expert evaluation, and exam-oriented feedback.
→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ Go through the UPSC Mains Previous Year Papers to enhance your preparation.
→ Download UPSC Mains Essay Paper 2025, UPSC Mains GS Paper-I 2025, UPSC Mains GS Paper-II 2025, UPSC Mains GS Paper-III 2025, UPSC Mains GS Paper-IV 2025, UPSC Mains English (Compulsory) Paper 2025, UPSC Mains Hindi (Qualifying) Paper 2025 here.
→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.
→ UPSC Calendar 2027 has been released.
→ Also check Best UPSC Coaching in India







