West Bengal Chief Minister Mamata Banerjee will organise a protest march in Kolkata tomorrow while DMK gave a call for an agitation in Tamil Nadu
on May 30 as the two key UPA allies step up pressure on the Centre today to roll back the steepest-ever petrol price hike. 

The protest action by the Trinamool Congress supremo and the DMK are expected to lend weight to a united opposition onslaught against the hike with the BJP-led NDA and the Left already announcing an all india bandh on May 31. Anna Hazare also announced support for the Bharat Bandh, saying his supporters will participate in the stir.

Joining the growing political opposition to the Rs 7.54 per litre hike, the ruling BJD in Odisha gave a call for a state-wide bandh on May 31 to demand an immediate rollback. 

Banerjee would lead the procession from Jadavpur to Hazra crossing, covering a distance of 5 km in south Kolkata.