Quarterly excise return format updated - new ER form fields and valuation rules including jewellery valuation criteria. Prescribes a revised Form E.R.-8 quarterly return for assessees under the fourth proviso to rule 12(1) of the Central Excise Rules, 2002 for goods cleared at concessional duty rates. The form mandates registration and manufacture/clearance tables capturing CETSH, units, opening and closing balances, quantities manufactured and cleared, assessable value and duty payable, plus sections for input service credit, duty payment challan details, other payments, and a self-assessment declaration. Instructions define assessable value methods and special valuation rules for articles of jewellery and permissible quantity codes.