Your friend may visit the bank. Give a name and all a/c including FD's shall be on the screen of the computer. All Forms signed by customer shall be available in the branch of the bank where FD's are held.If FD's are prepared by debit entry from SB a/c the record shall be available.
Bank Manager's are usually helpful.
"some with a initial of K some as G . Name is same."
Bank managers also used to ask customers to prepare FD with different intials keeping the name same.
Whenever an a/c is opened SB/FD/Current etc. certified copy of the form should always be obtained from the bank and originals and copies of FD may be kept in separate file at separate place.Bank can not decline to provide certified copy.
Issue of your friend shall get resolved.You have to peruse with the bank.