Section 138(1) in Kerala Goods and Services Tax Rules, 2017
(1)A person in charge of a conveyance carrying any consignment of goods of value exceeding such amount as may be specified, while transporting goods into or outside the State or where the goods are transported on a delivery chalan as specified under rule 55, along with the invoices, a declaration as mentioned in sub-rule (2), which shall be declared in the Kerala Value Added Tax Information System Portal immediately before such transportation of goods.