The Vanga Kingdom was an ancient seafaring thalassocracy during the Late Vedic period on the Indian Subcontinent, which originated in the region of Bengal. The boundary of the kingdom was naturally formed by the Padma and Bhagirathi rivers in the West, North and East; while the South was bounded by the Bay of Bengal. Its contemporary neighbouring states include Suhma, Anga, Pundravardhana, Samatata and Harikela.
At (6:9) the Angas, the Vangas and the Kalingas were mentioned as close kingdoms in Bharata Varsha (Ancient India). All regions of sacred waters and all other holy palaces there were in Vanga and Kalinga, Arjuna visited all of them, during his pilgrimage lasting for 12 years throughout the ancient India.
The founders of five eastern kingdoms, which included: Angas, Vangas, Kalingas, Pundras and Suhmas shared a common ancestry. They were all adopted sons of a king named Vali (Bali), born by a sage named Gautama Dirghatamas, who lived in Magadha close to the city of Girivraja.
...then attacked the king of Vanga....(2:29).
The Kashmiras, the Daradas, the Kuntis, the Kshudrakas, the Malavas, the Angas, the Vangas, the Kalingas, the Videhas, the Tamraliptakas, the Rakshovahas, the Vitahotras, the Trigartas, the Martikavatas were all vanquished by Bhargava Rama (7:68).