Which were the twelve rulers in Dakshinapatha?

12 rulers of Dakshinapatha were:

1. Mahendra of Kosala 
2. Vyaghraraja of Mahakantara ( Orissa)
3. Mahendragiri of Pishtapur
4. Hastivarman of Vengi
5. Ugrasena of Palakka
6. Vishnugopa of Kanchi
7. Damana of Erandapala'
8. Kubera of Devarashtra ruled Visakapatnam district
9. Mantaraja of Kaurala
10. Swamidatta of kollura
11. Nilaraja of Avamukta
12. Dhananjay of Kusathalapur.