'Karnataka Jala Samrakshana Samiti,' an umbrella outfit of farmers' associations and other organisations led by farmer leader Kuruburu Shanthakumar, has given the call for today's dawn-to-dusk (6 am to 6 pm) Bengaluru bandh. Shanthakumar and other leaders of the 'Karnataka Jala Samrakshana Samiti were detained by the police at the Mysuru Bank circle, as they were trying to hold a protest march towards Town Hall.