Which one of the following constitutional amendments lowered the votin

Which one of the following constitutional amendments lowered the voting age from 21 years to 18 years?

42nd Amendment
61st Amendment
73rd Amendment
86th Amendment
This question was previously asked in
UPSC Combined Section Officer – 2019-20
The 61st Constitutional Amendment Act, 1988, lowered the voting age for Lok Sabha and state assembly elections from 21 years to 18 years.
– This amendment was brought into force in 1989.
– It amended Article 326 of the Constitution, which deals with elections to the House of the People and to the Legislative Assemblies of States.
The 42nd Amendment Act, 1976, is known as the ‘Mini-Constitution’. The 73rd Amendment Act, 1992, established Panchayati Raj Institutions. The 86th Amendment Act, 2002, made elementary education a Fundamental Right (Article 21A).