Who wrote Mahabhashya?

Which of the following is the oldest rock in India?

Which is the first state in India where Panchayat Raj system was implemented?

In Hindu and Jainism, who is considered to be the center of the universe?

In which year did the East India Company get permission to do business in India?

In which battle was the war between Rani Laxmi Bai of Jhansi and the British?