Indian Oil Corporation [IOC] — is any amount required to be paid for name change as per aadhar card

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Hi is any amount to be paid to change my name as per aadhar card the indane agency is asking a sum of 804 rs to change my name as per aadhar card. Want to know just to make changes why should v pay re 804. We have complained even to ioc bangalore but answer was not convincing.. Nobody knows the exact rules and we feel we are been cheated.. Give us clarity