Recovery of unserved Notice Period

I onboarded in a company and left the organisation within 5 days. On the 4th day I put my papers after speaking with supervisor and my director. They seemed pissed as expected and did not guide much. I wrote the resignation email stating for release by next day since I have just joined I won’t be able to add value of any sort. I didn’t receive any response after that. Even on the 5th day not much response it was dead silence and everybody was working from home which made it even harder as I had no clue what’s going on. After almost 4:30 I get an email from my director stating that I would have to pay 1 Lakh INR for the unserved notice period and acknowledge this email. I was shocked so I called my director and asked for help explained him but he was not ready to help and said this is the process. I told him over teams that I do not have this much money, I can serve the notice period if you want. I knew this notice period is a waste of his and my time both. He asked me to confirm this over email. I wrote over email that I am not in financial state to pay such amount, I request for your kind consideration and guidance. After that nothing, HR kept asking to complete the exit formalities I asked to her read the email I have just shared she kept asking about the formalities, I was not sure as maybe I might have to serve the notice period. Maybe Hr highlighted this to my director that I am not completing my exit formalities, he pinged me over teams to complete my exit formalities. I did and then I was released. After almost 2 months I receive an email from their payroll asking for 1 Lakh money as the unserved notice period. Can they really do that? Or I can push them back since I have teams chat screenshot and email where I have mentioned I can’t pay this amount. Please advise