The Singur plant will require a full 1,000 acres since the ancillary units are an integral part of the small-car project, Tata Motors has clarified to the state government through a letter.

"We had sent a letter to the Tata Motors managing director (Ravi Kant) to find out what exactly they had written to Mamata Banerjee on the land requirement in Singur and its use,' industries minister Nirupam Sen said today.

"He has replied that the small-car plant would need 1,000 acres, and that the vendors or ancillary units are very much part of the project.'