Mahua Acharya, MD and CEO of state-owned Convergence Energy Services Ltd (CESL) has resigned from the top post. “This is to convey notice of my resignation from the post of Managing Director (MD) and Chief Executive Officer (CEO) of CESL including the post of Head Convergence as was originally advertised. In line with contractual requirements, my last day will be 13th January, 2023,” she said in the resignation letter to Vishal Kapoor, CEO of parent firm EESL.