The CBI raid on the office of Delhi Chief Minister Arvind Kejriwal "is highly condemnable and smacks of a politically motivated act", the CPI-M said on Tuesday."It is unprecedented that in the name of investigating the accusations against a bureaucrat, the office of the chief minister should be sealed and files searched, as alleged by the chief minister," it said."In any case, if indeed the CBI was targeting a bureaucrat whose office was on the same floor as the chief minister's, as claimed by the CBI, why was the chief minister not consulted? "This raid is a new low in the (Narendra) Modi government's encroachment on the rights and dignity of non-BJP elected governments," the Communist Party of India-Marxist said in a statement.