Article 55 of the Constitution of India outlines the procedure for the election of the President. The value of votes of elected Members of Legislative Assemblies (MLAs) and Members of Parliament (MPs) is calculated based on the population of the states. The 42nd Constitutional Amendment Act of 1976 stipulated that the term "population" for the purpose of calculating the value of votes would mean the population as ascertained at the 1971 census until the first census taken after the year 2000.