The stage is set for a showdown in Singur with Mamata Banerjee followers who have laid siege around the Nano plant announcing they won't allow any employee to enter the factory from Friday.

The announcement came from Naxalite leader Purnendu Bose, now one of the partners of the Krishi Jami Raksha Committee. Bose is among the several leaders of Trinamool allies who have pitched in their lot with her campaign against the Tata plants. He was one of the leaders nominated by Mamata to sit for talks with the government on August 20.