The CPI(M) has rejected Trinamool Congress' appeal for backing their no-confidence motion against the UPA government. Making their stand categorical, CPI (M) general secretary Prakash Karat told NDTV, in an exclusive interview, that the motion was not going to carry through as Mamata Banerjee simply didn't have the numbers. According to rules, at least 50 MPs are required to introduce a no-confidence motion.