Monthly return for receipt and consumption of principal inputs and finished excisable goods under CENVAT requirement. Form E.R.-6 requires a monthly tabular return under sub rule (3) of rule 9A of CENVAT Credit Rules, 2004 showing for each principal input: opening balance, receipts, quantity taken for use in manufacture (dutiable and exempted), removals for export/home consumption, closing balance, and the finished goods produced with quantity codes; it also requires reporting waste and scrap cleared or destroyed and a declaratory signature certifying concordance with factory/warehouse records.