Section 82(1) in The Central Goods and Services Tax Rules, 2017
(1)Every person who has been issued a Unique Identity Number and claims refund of the taxes paid on his inward supplies, shall furnish the details of such supplies of taxable goods or services or both electronically in FORM GSTR-11, along with application for such refund claim, through the common portal either directly or through a Facilitation Centre notified by the Commissioner.
