"Uddhav Thackeray is fooling MPs, MLAs and the people. It is the policy of the Shiv Sena chief, on one hand, to say that he opposes the project and, on the other, engage in farm land acquisition for the project," Rane, who has set up the Maharashtra Swabhiman Paksh (MSP), told reporters in Ratnagiri.
"If he (Thackeray) has the courage, he should get the project scrapped," he added.
Rane had earlier said that the proposed green refinery would spoil the flora and fauna of the Konkan region.
Producing a anonymous threat letter addressed to Ashok Walamb, chief of the Sangharsh Samiti, Rane had earlier said that Walamb was threatened by Thackeray at Matoshree.