In scathing remarks against the government over the ethnic violence in Manipur, the Supreme Court said today that there has been an absolute breakdown of constitutional machinery in the state for the past two months. Terming the investigation "tardy" and "lethargic", Chief Justice of India DY Chandrachud, who is heading the bench, said there has been a delay in FIRs being registered and statements being recorded. The court has also demanded the personal presence of the Manipur Director General of Police during the next hearing on Monday.