I am currently working in an MNC company. I asked for a transfer because of my health issues, but my RMG is not approving it. I resigned from my job 2 weeks ago, and my HR informed me that I need to serve a notice period of 90 days. Now, there is a serious health issue with my mother. Can I withdraw my resignation and request a transfer by submitting the reports of my mother's health issue? Can I do that?