(2)The Commissioner or Principal Commissioner shall direct the Assessing Officer to make an application under sub-section (1) only if an acceptance is received from the assessee to the effect that the question of law in the other case is identical to that arising in the relevant case; and in case no such acceptance is received, the Commissioner or Principal Commissioner shall proceed in accordance with the provisions contained in sub-section (2) or sub-section (2A) of section 253.