The question asks to identify the kingdom ruled by Asvapati during the Upanishadic age.
Asvapati is a prominent figure mentioned in the ancient Indian Upanishadic texts, particularly the Brihadaranyaka Upanishad.
Therefore, Asvapati was the ruler of Kekaya.
| List-I (Vedic name of river) | List-II (Modern name) |
| A. Drishadvati | 1. Chenab |
| B. Askini | 2. Chautang |
| C. Vitasta | 3. Ravi |
| D. Purushni | 4. Jhelum |