Rashtriya Colliery Mazdoor Sangh (RCMS) General Secretary A K Jha said that in the first shift, which began at 6 am, the miners reached the colliery but did not join the work.
"Production has been hampered in all the collieries of the BCCL and the Eastern Coalfields Limited," he claimed.
Rajendra Singh Chandel, the Rashtriya Pragatishil Workers Union (RPWU), affiliated to CITU, which is leading the strike in Ramgarh district, claimed that coal production and dispatch have been affected as the coal workers extended support to the strike.