Five national trade unions, including the Bharatiya Mazdoor Sangh (BMS), have announced a three-day coal workers' strike from October 5 due to issues with wage payment. The unions have served a memorandum to the Coal India chairman, stating that the September salary of non-executive miners and staff in CIL and SCCL would be paid on the basis of the National Coal Wage Agreement (NCWA)-10 instead of NCWA-11.