Section 14(3)(a) in The Customs and Central Excise Duties Drawback Rules, 2017
(a)If the said claim for drawback is incomplete in any material particulars or is without the documents specified in sub-rule (2), shall be returned to the claimant with a deficiency memo in the form prescribed by the Principal Commissioner of Customs or Commissioner of Customs, as the case may be, within 10 days and shall be deemed not to have been filed for the purpose of section 75A.