Who were janapadas and mahajanapadas?
The Janapadas were the major kingdoms of Vedic India. By the 6th century B.C. there were approximately 22 different Janapadas. With the development of iron in parts of UP and Bihar, the Janapadas became more powerful and turned into Mahajanapadas. There were sixteen such Mahajanapadas during 600 B.C. to 325 B.C. in Indian Sub-continent.