AppointmentTop Stories Samir Kumar Biswas gets extension as JS, D/o Chemicals and Petrochemicals By LO Bureau - October 7, 2020 0 Share FacebookTwitterWhatsAppLinkedinEmailTelegram The central deputation tenure of Samir Kumar Biswas (IAS:1990:MH) as Joint Secretary, Department of Chemicals and Petrochemicals has been extended for a period of one years beyond 08.10.2020.