The Correct Answer is : 61st Amendment act Explanation & Key Takeaways: • By Constitution (Sixty-first Amendment) Act, 1989 Constitutional Amendment Act, the voting age of Indian citizens has been reduced from 21 years to 18 years. • The 61st Amendment of the Constitution of India, officially known as The Constitution (Sixty-first Amendment) Act, 1988, lowered the voting age of elections to the Lok Sabha and to the Legislative Assemblies of States from 21 years to 18 years. • This was done by amending Article 326 of the Constitution, which concerns to elections to the Lok Sabha and the Assemblies. • The Indian constitution adopts the Universal adult franchise as a basis of elections to the Lok Sabha and State legislative assemblies. • Every citizen who is or above 18 years of age has a right to vote without any discrimination of caste, race, religion, sex, literacy, etc. • The voting age was reduced from 21 to 18 by the Parliament in the year 1989 by the 61st Constitutional Amendment Act of 1988. Related Concepts: • Constitution (Sixty-second Amendment) Act, 1989 • The Sixty-second Amendment of the Constitution of India, officially known as The Constitution (Sixty-second Amendment) Act, 1989, extended the period of reservation of seats for the Scheduled Castes and Scheduled Tribes and representation of the Anglo-Indians in the Lok Sabha and the State Legislative Assemblies for another ten years, i.e. up to 26 January 2000. • Constitution (Sixty-fourth Amendment) Act, 1990 • Article 356 amended to permit President's rule up to three years and six months in the state of Punjab. • Constitution (Sixty-third Amendment) Act, 1989 • Emergency powers applicable to State of Punjab, accorded in Article 359A as per amendment 59 repealed.