including A Raja to depose before it. Talking to newsmen here after the meeting, Committee Chairman P C Chacko said, CBI Director A P Singh and two senior CBI officials briefed the JPC on the probe agency’s inputs related to its investigation into the scam.   Singh briefed the JPC on the investigation into the 2G scam and said a third charge sheet into the matter would be filed during the current month. Singh and his team also briefed the JPC about the progress and findings into the alleged irregularities into the 2G spectrum allocation in January 2008.