Deceased father had taken a loan by pledging gold ornaments

Along with your father Death Certificate you submit all your legal heirs details to concerned  Tahsildar office by e-service center  for legal heir certificate . After obtain the certificate  you submit to Bankers and get back gold ornaments

See if  he has made any one nominee,deathcertificate ,gtree,adhar card,pan card

After repaying loan amount the gold will be handed over to legal heirs of the deceased father. So legal heir certificate in favour all three heirs is required to be submitted in the bank.

Opinions of members may not count, seek the prescribed claim set from the Bank, the forms state the documents to be enclosed and the powers of such officers.  The loan amount outstanding is not the criterion and it may be the market value of the ornaments that are considered, and a succession certificate from a competent court is essential, a power of attorney to settle the claim in favour of one among legal heirs is sufficient so that others need not visit the bank several times.  Under citizen charter, the bank must settle the claim within 3 months from receipt of all documents from claimants.

You may approach the branch of SBI where your father had taken the gold loan and enquire about the procedure and forms to be submitted and be guided by the bank officials.

Yes, the Bank alone can provide the proper guidance.