Hitting back at the CPM, she asked the party not to challenge her or find fault with her work.
At a government function at Baruipur in South 24-Parganas, Mamata further said that she had already given her best in the seven months of her tenure and what she was doing now was in "addition" to that.
"They are always creating riots and trouble and are criticising us," she said against the CPM.
"I took this responsibility that I am now carrying out, because you (the people) wanted me to," she said.
"I am not weak. I will go when I have to. I have come from Kalighat and will go back to Kalighat," she said.
Mamata further said after her party came to power through 'paribartan' (change), "people thought that Trinamool supporters would bash up the CPM workers and supporters and they would be murdered, but this has not happened. On the contrary, our men have been killed. Not that everyone in my party is absolutely clean, but such work are done by some mischief makers and not out of vengeance by my party workers."
"And because there has been no vengeance, they (the CPM) are moving around freely and holding meetings as well. However, if they oppose us and keep on looking for faults, then I will not forgive them," she said, adding that she would "not beat them up, but will take them to the people and let them decide."
Critising the left, she said that the previous government during their tenure left behind nothing and she and her collegues had to work overtime
"I am the farmers' friend, but the CPM is trying to make me look like a villain. However, let me warn them, I can be dangerous, so the CPM better beware," she warned. She also blamed the Centre for the price rise of paddy despite the subsidy lifted in 2010.
"The CPM is criticising us in the healthcare sector as now they are unable to get any cut money," she said.
She further said that she would work towards the development and bring two ITIs, two polytechnic, a stadium and a flyover in Baruipur soon.