1. IF the bank desires to "claim ownership of the property because they have discovered that the 2001 lease agreement was not registered ..." THEN THEY ARE LITERAL FOOLS, to even think that.
2. Tentatively, send the Bank, a legal notice, increasing the lease rentals by 500%, else vacate the premises within 30 days.
3. After the expiry of the last L&L agreement date is over, Issue another notice for eviction and tresspassing on the property without permission.
4. Note : that you are entitled to send the above notices & claims, ONLY if the inherited property documents are already transferred in the revenue / civic records.
Keep Smiling .... Hemant Agarwal