North Bank of Brahmaputra set to be key battleground in Assam election SECTIONS Share Synopsis In several seats in this North Bank belt, the Bodos and the tea tribes are the dominant voters and in a couple of consistencies, there is a substantial Gorkha vote share. Agencies The North Bank of River Brahmaputra, where BJP and its allies hold sway in 17 of the 18 constituencies, will be the crucial battleground to watch for during the Assam assembly elections, as the recent tie-up of the Bodoland People’s Front (BPF) with the Congress has made the latter a strong contender in many of these seats.