This notification shall be deemed to have come into force with effect from the 18th day of May, 2021. Amendment of rule 23.-In the Karnataka Goods and Services Tax Rules, 2017 (hereinafter referred to as the said rules) in rule 23, in sub-rule (1), after the words “date of the service of the order of cancellation of registration” the words brackets and figures “or within such time period as extended by the Additional Commissioner or the Joint Commissioner or the Commissioner, as the case may be, in exercise of the powers provided under the proviso to sub-section (1) of section 30”, shall be inserted. Amendment of rule 90.- In rule 90 of the said rules,- after sub-rule (3), the following proviso shall be inserted, namely:- “Provided that, the time period, from the date of filing of the refund claim in FORM GST RFD-01 till the date of communication of the deficiencies in FORM GST RFD-03 by the proper officer, shall be excluded from the period of two years as specified under sub-section (1) of section 54, in respect of any such fresh refund claim filed by the applicant after rectification of the deficiencies.” after sub-rule (4), the following sub-rules shall be inserted, namely:- “(5) The applicant may, at any time before issuance of provisional refund sanction order in FORM GST RFD-04 or final refund sanction order in FORM GST RFD-06 or payment order in FORM GST RFD-05 or refund withhold order in FORM GST RFD-07 or notice in FORM GST RFD-08, in respect of any refund application filed in FORM GST RFD-01, withdraw the said application for refund by filing an application in FORM GST RFD-01W.