What is exact procedure to submit form 15G/H to a Bank, how many copies of PAN card, form itself?

Is the form 15G/H is customer ID specific or a specific deposit account specific, Different banks are following different procedures , they put blame on Income tax department. Some accept the form in duplicate, some in triplicate, some do not ask PAN card copy , some are asking two or three copies !
Income Tax site is not user friendly, hence this question.

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