Emergency services are expected to function normally, but schools, markets and public transport may face disruption in several states. The Centre maintains that only an interim framework exists and no final Free Trade Agreement has been signed.
The Congress government in Karnataka has been facing criticism for introducing freebie schemes, while the four state transport corporations have been facing a severe financial crunch.
The petroleum dealers were protesting against the government's decision to impose a 0.5 per cent advance turnover tax which, they say, would result in an additional tax burden of Pakistani Rupees (PKR) 1 million per pump.