Early resignation due on medical grounds

Hi, I work for a company in Pune and recently was diagnosed with multiple medical complications for which I submitted all relevant reports to the company and took a 2-month sabbatical. However, my condition hasn't improved and new reports were submitted to the company last week requesting acceptance of my resignation without notice served due to my medical condition and the fact that I've been advised to avoid crowded places for the risk of infection. However, the company hasn't replied to my intimation mail in which I've sent all my medical reports and have today sent across the 1st notice as an absconder & have asked me to either resume work (cannot be done in current condition) OR Pay 1-month gross salary for notice (again not possible due to high medical expenses. I have a few questions to which any help will be highly appreciated. 1) Can I be treated as an absconder even after being in constant touch with the company and providing timely updates? 2) Is there any provision in the Indian laws to help me in this situation? 3) Their offer letter says 1 month basic needs to be paid and the company is demanding gross how is that ethical? I've sent them a quick reply again inform them of my medical condition and that I've always kept them updated for this I shouldn't be termed as an absconding case, however, with the amount of internal politics I'm not sure if my mail will have any impact. So any help and guidance from the legal fraternity will be very helpful. Thank you in advance. An aggrieved girl.