Staying firm on her demand, Railway Minister Mamata Banerjee on Thursday said no project will be allowed in Singur unless 400 acres is returned to farmers, hours after a BHEL team visited the site for setting up a power plant.

"We have said earlier and want to make it clear that no project would be allowed at Singur unless the 400 acres of land is returned back to the farmers," Mamata told reporters here.

She said this when asked for her reaction on the BHEL team visiting the site for setting up a power plant.

BHEL sources earlier on Thursday said in Kolkata that they visited the site in connection with the setting up of a power plant after the request was made by the state owned PSU, West Bengal Power Development Corporation Ltd (WBPDCL).

Banerjee said railways had also received similar proposals from the BHEL and the "letters were with her".

"But our stand remains unchanged. Return the extra land (400 acres) to farmer and set up the plant at 600 acres only," she said adding "railway is even eager to set up a coach factory there but we will stand by our principles."

On her meeting with Sam Pitroda, who is heading a railway committee on use of ICT for railways, Banerjee said they discussed various proposals that the committee has come up with.

"His ideas are good and if implemented, it would generate revenue for the Railways," she said.