King Kaṁsa not only occupied the kingdoms of the Yadu, Bhoja, and Andhaka dynasties and the kingdom of Śūrasena, but he also made alliances with all the other demoniac kings, as follows: the demon Pralamba, demon Baka, demon Cāṇūra, demon Tṛṇāvarta, demon Aghāsura, demon Muṣṭika, demon Ariṣṭa, demon Dvivida, demon Pūtanā, demon Keśī and demon Dhenuka. At that time, Jarāsandha was the king of Magadha province (known at present as Behar state). Thus by his diplomatic policy, Kaṁsa consolidated the most powerful kingdom of his time, under the protection of Jarāsandha. He made further alliances with such kings as Bāṇāsura and Bhaumāsura, until he was the strongest. Then he began to behave most inimically towards the Yadu dynasty into which Kṛṣṇa was to take His birth.