"We are very much serious about these developments and ready to take hard decisions if these issues are not reconsidered," Banerjee, the West Bengal Chief Minister, said on her Facebook page.
"We cannot support price hike of diesel and reduction in subsidized LPG cylinders. Today, a decision has been taken allowing FDI in retail sector. It is a big jolt. We are really sorry. We cannot support anything that is against the interest of the poor and common people. Loot cholchhe loot (Loot is going on).
"Sometimes, speech is silver and silence is golden. We are not party to it. We are not supporting these anti-people decisions. We are very much serious about these developments and ready to take hard decisions if these issues are not reconsidered", she said.
Earlier, Trinamool Congress gave a 72-hour deadline to the UPA government to roll back FDI in multibrand retail and the diesel price hike.
"We are giving a 72-hour deadline to roll back the decisions. We will discuss and take a tough stand at the TMC parliamentary party meeting on Tuesday if the government does not listen to us," TMC General Secretary and Railway Minister Mukul Roy told PTI.
"We are not in favour of FDI in retail. We are not in favour of FDI in aviation also. We are always in favour of the common people," he said.
He said an emergent meeting of the party's parliamentary party on September 18 would discuss these issues.