The party also said that the timing of General (Retd) V K Singh's joining the BJP was aimed at "seeking political shelter and to pre-empt government's moves against him."
"Singh has been making outrageous remarks, one after the other... By making such statements, he has sullied the image of the army and raised questions about several issues related to national security," CPI National Secretary D Raja said.
Referring to the BJP's defence of Singh who recently shared political platform with Gujarat Chief Minister Narendra Modi, Raja said, "The timing of his joining hands with BJP is meant to pre-empt the government's moves against him over his statements. It is to take political shelter."
He also accused the former army chief of "exposing army functions in a sensitive state like Jammu and Kashmir and his allegations regarding how the army spends money. All this needs to be investigated. If there is a leak, the leak has to be probed."