Annual installed capacity declaration requires manufacturers to report production capacity, plant and power details and file timely amendments. Form E.R.-7 requires manufacturers to declare installed production capacity by class of goods, list main plant and machinery with technical specifications and year of installation, and provide electricity connection details including meter numbers, sanctioned load and captive power capacity. The declaration must be signed by an authorized person. Quantity codes must follow duty-payment measurement units and unit abbreviations are specified. An amendment to the declaration must be filed when a substantial expansion increases installed capacity for a product class beyond the prescribed threshold within the required reporting period.