Explanation:

? The Indian Constitution adopts universal adult franchise as a basis of elections to the Lok Sabha and the state legislative assemblies. Every citizen who is not less than 21 years of age has a right to vote without any discrimination of caste, race, religion, sex, literacy, wealth, and so on. The voting age was reduced to 18 years from 21 years in 1989 by the 61st Constitutional Amendment Act of 1988. (Hence statement 1 is incorrect) ? The introduction of universal adult franchise by the Constitution-makers was a bold experiment and highly remarkable in view of the vast size of the country, its huge population, high poverty, social inequality and overwhelming illiteracy. ? Universal adult franchise makes democracy broad-based, enhances the self-respect and prestige of the common people, upholds the principle of equality, enables minorities to protect their interests and opens up new hopes and vistas for weaker sections. (Hence statement 2 is correct) ? Though it upholds democracy but it does not ensure a responsible government. (Hence statement 3 is not correct)