Shops, commercial establishments and educational institutions at most places remained shut, officials said.
Protests by several organisations and farmers are also being held across the state, including Bengaluru.
Pro-Kannada and farmer associations have called for 'Karnataka Bandh' on July 30 against the interim order.
Karnataka, which has locked horns with neighbouring Goa on the larger issue of sharing Mahadayi river water between both the states, had petitioned the tribunal seeking release of 7.56 tmcft of water for Kalasa-Banduri Nala project.
The tribunal, which gave its interim order on Wednesday after hearing arguments from both Karnataka and Goa, had rejected the state's plea citing various grounds including ecological damage that the project may cause.
The Kalasa-Banduri Nala (diversion) project, which will utilise 7.56 tmcft from the inter-state Mahadayi river, is being undertaken by Karnataka to improve drinking water supply to the twin cities of Hubballi-Dharwad and the districts of Belagavi and Gadag.
Reacting to the order, Chief Minister Siddaramaiah had on Wednesday said Karnataka in its petition, asked for 7.56 tmcft for drinking purpose which should have been given priority according to National
Siddaramaiah had led an all party delegation to the Prime Minister seeking his intervention for an out of court settlement of the issue. Karnataka Legislature had also passed a resolution seeking the Prime Minister's intervention.
Goa government had earlier rejected Karnataka's attempt for out of court settlement of the dispute, stating that the people of the state felt it was more prudent to settle the dispute through the Tribunal.
Reacting to the order, BJP leader and former water resources minister Basavaraj Bommai said it was against natural justice.
Claiming that the tribunal has not considered the Central Water Commission's report and also not yet received any assessment, he asked the state government to immediately go before the Supreme Court.
Business Standard has always strived hard to provide up-to-date information and commentary on developments that are of interest to you and have wider political and economic implications for the country and the world. Your encouragement and constant feedback on how to improve our offering have only made our resolve and commitment to these ideals stronger. Even during these difficult times arising out of Covid-19, we continue to remain committed to keeping you informed and updated with credible news, authoritative views and incisive commentary on topical issues of relevance.
We, however, have a request.
As we battle the economic impact of the pandemic, we need your support even more, so that we can continue to offer you more quality content. Our subscription model has seen an encouraging response from many of you, who have subscribed to our online content. More subscription to our online content can only help us achieve the goals of offering you even better and more relevant content. We believe in free, fair and credible journalism. Your support through more subscriptions can help us practise the journalism to which we are committed.
Support quality journalism and subscribe to Business Standard.