AppointmentPSUM. Vinayakumar appointed as Director (Refineries), MRPLBy LO Bureau - July 9, 20190ShareFacebookTwitterWhatsAppLinkedinEmailTelegram M. Vinayakumar has been appointed to the post of Director (Refineries), Mangalore Refineries & Petrochemical Limited (MRPL) till May 30, 2020 i.e the date of his superannuation. Presently, he is serving as Group General Manager, MRPL.