Releasing of locker contents to legal heirs.

Banks can decide to give the locker to legal heir or not.  But they will not object as long as you pay them rent, even if the locker is empty. Banks cannot open  any closed envelope and there is no way by which they can get the certified valuer for jewellery as the locker is operated by the individual, against a yearly charge and banks do not know whether it contain jewellery, cash, papers, or just stones. 

Repeated Query:

It was suggested that you may refer to RBI;Master Circular on Customer Services: Clause 19,20 onwards

You may go thru latesr version of 2015 at:

https://rbi.org.in/Scripts/BS_ViewMasCirculardetails.aspx?id=9862#2121

21.2 Access to the safe deposit lockers / return of safe custody articles (without survivor/nominee clause)

21.3 Preparing Inventory

21.3.1 Banks should prepare an inventory before returning articles left in safe custody / before permitting removal of the contents of a safe deposit locker as advised in terms of Notification DBOD.NO.Leg.BC.38/ C.233A-85 dated March 29, 1985. The inventory shall be in the appropriate Forms set out as enclosed to the above Notification or as near thereto as circumstances require. A copy of the above Notification is shown as Annex IV of this Circular.

Banks can decide to give the locker to legal heir or not.  But they will not object as long as you pay them rent, even if the locker is empty. Banks cannot open  any closed envelope and there is no way by which they can get the certified valuer for jewellery as the locker is operated by the individual, against a yearly charge and banks do not know whether it contain jewellery, cash, papers, or just stones. 

I didn’t find any specific response to my specific query as “ Once the Bank permits legal heirs/mandated heir as per their own norms, without any order of Court regarding the items in locker, whether Bank needs the services of a certified jeweler, for preparing the list of inventory in their stipulated Annexure 7a”.

I'll be obliged if I get a reply in specific.