Kolkata, May 7 -- Several former bureaucrats and advisors appointed by outgoing West Bengal chief minister Mamata Banerjee have tendered their resignations following the Trinamool Congress's (TMC) defeat in the West Bengal assembly elections, even as the outgoing chief minister has refused to step down. The list includes former chief secretaries Alapan Bandyopadhyay, HK Dwivedi and Manoj Pant, as well as economist Abhirup Sarkar. "I was the chairperson of the West Bengal infrastructure development finance corporation (WBIDC) and the West Bengal small industries development corporation (WBSIDC). I have already tendered my resignation on Tuesday," Sarkar told HT on Wednesday. "Even though I am not a political person, the appointments were pol...