'I've told the city civic authorities to give me the clearance by October this year. I will wait for just the next three months. If I don't get it by then, I shall have to think of other options. We've two more states to move this waste energy plant,' Sen said, declining to share the names of these two states.

'I am super frustrated with the KMC authorities. The administration is just dilly-dallying the project. Everywhere there's a quagmire of political issues in the state. There should be a single-window clearance system in West Bengal,' he said, but added: 'I am still optimistic about this project.'

Land acquisition has emerged a major issue in the state after the Trinamool-led opposition carried out a sustained campaign against the state government's bid to acquire land for setting up Tata Motors' Nano plant in Singur and a chemical hub in Nandigram.

While the Tatas shifted the plant to Sanand in Gujarat, the state government was forced to scrap the chemical hub project after violent protests.

The land issue led to large sections of people, fearful of losing land, turn to the opposition which reaped rich dividends in all recent polls in the state.