The 61st Amendment Act, 1989, lowered the voting age from 21 to 18 years, granting the right to vote to all citizens of India who are 18 years of age or older.

Article 324 of the Indian Constitution establishes the Election Commission of India as an independent body responsible for conducting free and fair elections to the Parliament and State Legislatures.

The 23rd Amendment Act, 1969, amended Article 330 and 332 of the Constitution to provide for the reservation of seats for Scheduled Castes and Scheduled Tribes in the Lok Sabha and State Legislative Assemblies.

According to Article 56 of the Indian Constitution, the President of India holds office for a term of five years from the date on which he/she enters upon his/her office.

The 91st Amendment Act, 2003, amended the Representation of the People Act, 1951, to introduce the concept of 'NOTA' (None of the Above) in electronic voting machines, allowing voters to express their disapproval of all candidates in a constituency.

Article 75 of the Indian Constitution establishes the office of the Prime Minister, who is the head of the Council of Ministers and is responsible for advising the President on matters of governance.

The 52nd Amendment Act, 1985, introduced the concept of 'anti-defection' law in India by amending the Constitution to provide for the disqualification of members of Parliament and State Legislatures who defect from their political parties.

According to Article 84 of the Indian Constitution, a person must be at least 25 years of age to be eligible to contest elections to the Lok Sabha.

The 11th Amendment Act, 1961, amended Article 54 and 66 of the Constitution to introduce the provision for the election of the President and Vice President of India through an electoral college consisting of elected members of Parliament and State Legislatures.

According to Article 56(1) of the Indian Constitution, a person can serve as the President of India for a maximum of two terms.

The 24th Amendment Act, 1971, amended Article 80 of the Constitution to introduce the provision for the election of members of the Rajya Sabha by proportional representation through the single transferable vote system.

Article 63 of the Indian Constitution establishes the office of the Vice President, who is the ex-officio Chairman of the Rajya Sabha and acts as the President in the absence of the President.

According to Article 84 of the Indian Constitution, a person must be at least 30 years of age to be eligible to contest elections to the Rajya Sabha.

The 73rd Amendment Act, 1992, amended the Constitution to introduce the provision for the reservation of seats for women in Panchayats and Municipalities, ensuring their participation in local governance.

According to Article 66(4) of the Indian Constitution, a person can serve as the Vice President of India for a maximum of two terms.