Accounting Standards are used as one of the main compulsory regulatory mechanisms for preparation of general-purpose financial reports and subsequent audit of the same, in almost all countries of the world. Accounting standards are concerned with the system of measurement and disclosure rules for preparation and presentation of financials statements.
Accounting Standards are the policy documents (authoritative statements of best accounting practice) issued by recognized expert accountancy bodies relating to various aspects of measurement, treatment and disclosure of accounting transactions and events!
Sub Section (3A) to section 211 of Companies Act, 1956 requires that every Profit/Loss Account and Balance Sheet shall comply with the Accounting Standards. The standard of accounting recommended by the ICAI and prescribed by the Central Government in consultation with the National Advisory Committee on Accounting Standards constituted under section 210(1) of companies Act, 1956.
According to Government of India, there are 31 accounting standards, but 32 are also included in 31st accounting standard (Financial Instrument: Presentation). So we can say that there are 32 accounting standards.