Karnataka observed a statewide bandh on August 13 as pro-Kannada organisations and farmers protested against the release of Cauvery water to Tamil Nadu. The agitation followed directions from the Cauvery water authorities for Karnataka to release 12,000 cusecs of water for 15 days. While Mandya saw intense protests and road blockades, life remained largely normal in Bengaluru and several other major cities. Here's a look at the Cauvery dispute, why Karnataka is protesting and how Tamil Nadu is involved.