Forms ER-1 and ER-3 specified for monthly production and removal returns and CENVAT credit filings. The Central Board of Excise and Customs specifies forms ER-1 and ER-3 under rule 12 of the Central Excise Rules, 2002 and sub rule (7) of rule 9 of the CENVAT Credit Rules, 2004, superseding the earlier notification; these forms are prescribed for the monthly return on production and removal of goods and for reporting particulars related to CENVAT credit.