New Delhi, April 10 -- Coal India share price slumped 6% on Friday, April 10 making it the worst performer on the Nifty 50 index after the company announced a cut in coal reserve prices under its single-window, mode-agnostic e-auction segment.

The decision reflects the company's strategy to absorb rising input costs rather than pass them on to customers, aiming to keep coal prices affordable and ease cost pressures for end-users.

This comes despite a sharp surge in key input costs. Prices of ammonium nitrate-a critical raw material for explosives-have risen 44% from Rs.50,500 per tonne pre-war to Rs.72,750 per tonne as of April 1, 2026. Explosives costs have also increased 26%, while industrial diesel prices have jumped 54% to Rs.142 pe...