Coal India, the world's largest coal miner, posted a profit of Rs 3,078.08 crore in the second quarter a year earlier.
Net sales rose 5.75 per cent to Rs 15,411.49 crore from Rs 14,572.54 crore, Coal India said in a BSE filing.
Coal India's total expenses increased 8.38 per cent to Rs 13,112.45 crore. The bulk of the expenses were on employee benefits, on which the company spent Rs 6,974 crore. At present, the PSU has a staff strength of 3.6 lakh.
While contractual expenses went up to Rs 1,393.50 crore from Rs 1,091.74 crore, spending on welfare increased to Rs 171 crore from Rs 68 crore in the same period a year ago.
Coal India's production during the quarter was up 9.57 per cent at 97.6 million tonnes. Offtake was 109.12 million tonnes compared with 101.74 MT in corresponding quarter of the previous financial year.
The miner accounts for over 80 per cent of domestic coal production. Its output in the previous financial year was 452.5 million tonnes.
Coal India shares closed at Rs 284.95 on the BSE, down 0.05 per cent, before the earnings announcement.