State BJP General Secretary and MP Rakesh Singh told reporters that the Chief Minister highlighted the conditions under which he wrote the letter.
Chouhan said he wrote the letter to the Prime Minister as use of excess coal would avoid delay in coal supply arrangement for the Chitrangi project and facilitate its early commissioning.
RPL was allowed to divert excess coal from the three mines Moher, Moher Amlohri and Chhatrasal in the state to another project, Chitrangi, also in the state, by the central government.
The coal blocks were originally allocated for Sasan Ultra Mega Power Project (UMPP) in Sidhi district.
CAG's report had last month questioned the central government's decision to allow the use of surplus coal from blocks allotted to Sasan UMPP for other projects of Reliance Power.
The state executive meet today also criticised Congress for its handling of the Assam violence and demanded all illegal migrants from Bangladesh settled in the north-eastern state should be sent back.