With Election Commission announcing dates for the Karnataka assembly polls, the latest water dispute between Karnataka and Tamil Nadu over the Hogenakkal drinking water supply project is in danger of taking a serious turn. A large number of policemen stood guard in Hosur town bordering Karnataka even as buses between the two states did not ply fearing attacks by protesters. Many Kannada groups have come together for a series of protests over the next few days, with a Karnataka bandh called for April 10. In Tamil Nadu, the film industry is planning to observe a fast on Friday to protest against the attacks on cinemas screening Tamil films. On Wednesday, lawyers blocked traffic outside the Madras high court in Chennai and held protests against what they called