Hi
You should send the company a legal Notice, demanding your two months payment arrears due and the experience letter.
You can mention that you were not informed about this payment of two lacs rupees, during your Notice period.
You can pursue this matter further if the company fails to pay you after sending the legal notice.
You can either approach a labour court in Pune or the concerned company office is or if you were working in a managerial level, you should approach a civil court for recovery of salary arrears, with interest and compensation .
Since your notice period was served and there was no letter stating any objection and they accepted your resignation , so It is not you they are liable to pay you .