I had resigned from my company last month and my last working day is over by the end of last month. The usual notice period is 3 months but they gave me an early release. I hadn't been to the company since march last week as company was functioning with minimal manpower. They started asking people to come for duty from the beginning of last month. They had asked me for my tentative date. Due to the covid situation i said that it will take me approximately 2 months to join back. But the company has asked me to buyout the months from March end to May end for 2 months. Considering the covid situation, can I go back and ask them to extend my notice period for the full 3 months?