With a petrol price hike due for long, the Federation of All India Petroleum Traders (FAIPT) has threatened if the next price increase happens without considering dealers’ margin, it will go on an indefinite agitation. Ajay Bansal, general secretary, FAIPT, said the 40,000 petrol pump dealers will lead a nation-wide agitation to press their demands by ‘no sale no purchase’ from April 23 midnight.