Sir,
Asper sub-rule 4B of Rule 89 of CGST Rules,2017 "
[(4B) Where the person claiming refund of unutilised input tax credit on account of zero rated supplies without payment of tax has -
(a) received supplies on which the supplier has availed the benefit of the Government of India, Ministry of Finance, notification No. 40/2017-Central Tax (Rate), dated the 23rd October, 2017, published in the Gazette of India, Extraordinary, Part II, Section 3, Sub-section (i), vide number G.S.R. 1320(E), dated the 23rd October, 2017 or notification No. 41/2017-Integrated Tax (Rate), dated the 23rd October, 2017, published in the Gazette of India, Extraordinary, Part II, Section 3, Sub-section (i), vide number G.S.R. 1321(E), dated the 23rd October, 2017; or
(b) availed the benefit of notification No. 78/2017-Customs, dated the 13th October, 2017, published in the Gazette of India, Extraordinary, Part II, Section 3, Sub-section (i), vide number G.S.R. 1272(E), dated the 13th October, 2017 or notification No. 79/2017-Customs, dated the 13th October, 2017, published in the Gazette of India, Extraordinary, Part II, Section 3, Sub-section (i), vide number G.S.R. 1299(E), dated the 13th October, 2017,
the refund of input tax credit, availed in respect of inputs received under the said notifications for Export of goods and the input tax credit availed in respect of other inputs or input services to the Extent used in making such Export of goods, shall be granted.
In view of the provisions you are eligible to avail refund of tax paid under Notification No. 40/2017-C.T. (Rate) dated 23.10.2017.