A HUF (Hindu Undivided Family) account holder is facing difficulties changing the Karta on their late father's fixed deposits with IDFC First Bank after their elder brother, the previous Karta, passed away. The bank is requesting a legal heir/succession certificate from the Tehsildar, which the Tehsildar's office states they do not issue. The account holder is seeking guidance on how to proceed without prematurely closing the deposits and questioning the bank's requirement, especially since a similar change was previously accepted.