Alok Kumar Verma, the director of the Central Bureau of Investigation, got an earful from the Supreme Court today for the agency's failure to arrest the accused in alleged extra-judicial killings in Manipur. One of the insurgency-hit states, Manipur has witnessed a number of allegations of extra-judicial killings by the army and security forces. The top court, which is hearing a petition seeking investigation into 1,528 cases, had asked the agency to file chargesheet in four cases that allegedly involved the army and the Assam Rifles.