The Annual Survey of Industries (ASI) is the principal source of industrial statistics in India. It provides statistical data of industries to evaluate and assess the changes in the growth and structure of industrial sector The ASI collection contains year-, state-, region-, industry-type- and nic-code-wise compiled data on the value of industries by their principal and major characteristics. These include characteristics such as number of factories, number of workers, mandays - workers, number of employees, mandays - employees, total person engaged, value of fixed capital, working capital, invested capital, outstanding loans, wages to workers, total emoluments, provident and other funds, workmen and staff welfare expenses, fuels consumed, material consumed, total inputs, products and by-products, output, depreciation, net value added, rent paid, interest paid, net income, net fixed capital formation, gross fixed capital formation, addition in stock of materials, fuels, etc., addition in stock of semi-finished goods, addition in stock of finished goods, gross capital formation, profits, old age benefits, social security benefits, products, etc.