The main means of livelihood of the Aryans in the Vedic period was?

When did the first rail run in the world?

The State is the largest producer of bauxite in India?

The secretion of which hormone increases the heart rate and starts feeling excited?

According to the Rigveda, on which river the Dasaraja war took place?

Who was the founder of Tughlaq dynasty?

What are the compounds that have the same molecule but have different physical properties?

With which religion is the festival of light called Hanukkh related?