As NH-31 winds from Barovisha in Cooch Behar into Gossaigaon in Kokrajhar, the green in which the Trinamool Congress had drenched most things in West Bengal — road dividers, shop walls, the occasional tree trunk — has given way to a bold neon pink in Assam. The Bodoland People’s Front in Assam has chosen the pop colour and a Facebook fanpage-like tone. From the border till deep inside Gossaigaon, roadsides scream, “I luv BPF” and “BPF is grt”.