Section 96B(2) in The Central Goods and Services Tax Rules, 2017
(2)Where the sale proceeds are realised by the applicant, in full or part, after the amount of refund has been recovered from him under sub-rule (1) and the applicant produces evidence about such realisation within a period of three months from the date of realisation of sale proceeds, the amount so recovered shall be refunded by the proper officer, to the applicant to the extent of realisation of sale proceeds, provided the sale proceeds have been realised within such extended period as permitted by the Reserve Bank of India.]