Deputy Chief Minister DK Shivakumar announced a possible water tariff increase in Bengaluru after a recent hike in petrol and diesel prices in Karnataka. The Bangalore Water Supply and Sewerage Board (BWSSB) is facing financial challenges, with Shivakumar emphasizing the need for a review after 10 years. The completion of the fifth phase of the Cauvery project is expected to impact the decision on the water tariff hike.