A tweet from dairy giant Amul four days back has snowballed into a political storm in poll-bound Karnataka, with bitter attacks against the ruling BJP. It started with an announcement that Gujarat-based Amul will start online deliveries in Bengaluru, upsetting those associated with the state's own formidable dairy brand, Nandini. Congress and JD(S) leaders, after speculations of a merger between the Karnataka Milk Federation (KMF), which owns the Nandini brand, and Gujarat's Anand Milk Union Limited (Amul), accused the BJP of "evil plans" and "conspiracy" to destroy the state's own brand.