Q. Which of the following Mahajanapada is NOT located at North – Western side of the Indian Subcontinent?
Answer: A
Notes:
Explanation: In north-east India, Magadha emerged as a formidable power and gradually smaller principalities and republics merged within it.
The situation in north-western India did not allow for such consolidation. The Mahajanapads of Kamboja, Madra, and Gandhara were continuously fighting with each other.

Source: Tamil Nadu NCERT

