changing name in D-mat account

This quarry has already been replied in the open forum

Since the change is for a Demat account and not a Savings Bank a/c or a current a/c. and a Demat account holds a large no of shares in electronic format of different companies, the change must occur in the company records, merely change in name of an demat account isn't sufficient, what the bank did in denying from changing the name is legally correct.