Who conducts elections for both houses of Parliament in India?

Correct option is B

The correct answer is (b) Election Commission.
 The Election Commission of India is an autonomous constitutional authority responsible for conducting free and fair elections at various levels of government in India, including elections for both houses of Parliament.
 It was established in accordance with the Constitution on 25th January 1950 (celebrated as national voters' day).
 The secretariat of the commission is located in New Delhi.
 Part XV of the Indian Constitution deals with ECI.
 It is an all-India body that is common to both Central and state.
 The Election Commission of India became a multi-member body in 1989 when the 61st Constitutional Amendment Act, 1988 was enacted.