Court rules in favour of Tata Motors in Singur land tussle

The law, which forced the company to hand back land in West Bengal, was ruled "unconstitutional and void" by the Calcutta High Court, lawyers present told Reuters.

The ruling will be challenged in the Supreme Court, said Kalyan Banerjee, a lawmaker in the state government.

Tata, which abandoned the project in 2008 and shifted the factory to make its ultra-low cost Nano car to Gujarat, has previously sought compensation over the dispute.

"We will be studying the order before deciding the next course of action," Tata Motors spokeswoman Ashmita Pillay said.

Shares in Tata Motors were flat in the afternoon, after having risen slightly following the ruling.