"Comrade Achuthanandan should desist from making such uncalled for remarks in public," the party Politburo said in a statement here.
It said Achuthanandan had made "certain allegations in a television interview regarding party matters which were already decided in the party. Hence these charges are baseless and unwarranted".
In a virtual indictment of the CPI(M) state unit led by his bete noire Pinarayi Vijayan, the octogenarian leader yesterday said that lapses including "irrational" selection of candidates had led to the narrow defeat of the LDF in 2011 assembly polls in Kerala.