The correct answer is 2 only.

• In India, the Election Commission is responsible for the conduct of Parliament and State Legislatures elections.
• The Municipal Corporations elections are conducted by the State Election Commission. 
• In India, we have Universal Adult Suffrage which means all adults over the age of 18 years have the Right to Vote without any discrimination. Hence, statement 2 is correct.
• The voting age was reduced from 21 years to 18 years by the 61st Amendment Act, 1989. Hence, statement 1 is incorrect.
• Article 324 to 329 gives provisions for the electoral system in our country.

• The commission consists of one Chief Election Commissioner and two Election Commissioners. 
• The President may from time to time fix and the appointment of the Chief Election Commissioner and other Election Commissioners shall, subject to the provisions of any law made in that behalf by Parliament. 
• When any other Election Commissioner is so appointed the Chief Election Commissioner shall act as the Chairman of the Election Commission.
• They have a fixed tenure of six years, or up to the age of 65 years, whichever is earlier.
• The Chief Election Commissioner can be removed from office by the Parliament only through a process of removal similar to that of a Supreme Court judge.