The Supreme Court today declined to stay the Calcutta High Court judgment upholding the acquisition of land in Singur by Tata Motors to manufacture Nano, the Rs 1 lakh car. Therefore, there is no court bar against continuing with the project. However, the apex court issued notices to the West Bengal government, Tata Motors and the Centre on a set of appeals against the high court judgment. It might examine the validity of the land acquisition after the governments and the firm appear before it in July.