CHENNAI: B. N. Singh, Executive Director Incharge, Rourkela Steel Plant (RSP), and V. K. Srivastava, Executive Director (Works), Bokaro Steel Plant (BSL) of SAIL, have assumed charge as Managing Director of the respective plant. According to a release, both Mr. Singh and Mr. Srivastava have spearheaded various key projects of the company as accomplished technocrats and dedicated managers.