New Delhi, July 22 -- The Supreme Court on Monday warned the Enforcement Directorate (ED) about being used as a political tool and likening the trend to a "virus" that must not spread across the country. Dismissing the agency's appeal against the quashing of proceedings in the Mysuru Urban Development Authority (MUDA) land allotment case involving Karnataka chief minister Siddaramaiah's wife Parvathi, the court said "enough is enough" and cautioned ED to steer clear of political battles. A bench comprising Chief Justice of India Bhushan R Gavai and Justice KV Chandran questioned ED's motives in pursuing the case. "Let political battles be fought before the electorate. Why are you being used?" the bench asked Additional Solicitor General SV Raju, who appeared for ED. "Mr Raju, please don't ask us to open our mouths. Otherwise, we will be forced to make some harsh comments about ED," the bench cautioned the ASG. In a stern tone, the CJI further remarked: "Unfortunately, I have some experience in Maharashtra. you don't perpetuate this virus across the country now. Let political battles be fought elsewhere and not in courts." It wasn't immediately clear which investigation of ED pertaining to Maharashtra he was referring to. The court's strictures came in response to ED's challenge to the ruling of the Karnataka HC, which quashed the ECIR and the summons issued by the agency to Parvathi and minister Byrathi Suresh in connection with alleged irregularities in the allotment of 14 residential sites by MUDA....