The Joint Parliamentary Committee -JPC has asked all agencies probing telecom policies to inform it about the progress in the investigation into the alleged irregularities in spectrum allocations. Briefing reporters in New Delhi this evening, JPC Chairman P C Chacko said that Committee wants to know first hand on the progress in the investigation from the agencies. The CBI, Enforcement Directorate and Central Board for Direct Taxes (CBDT) are probing various aspects of the alleged irregularities in the 2G spectrum allocation. The probe is being monitored by the Supreme Court. The JPC today recorded the evidence of former Telecom Secretary Shyamal Ghosh during whose tenure the 'first come first serve' policy was followed for allocation of Wireless in Local Loop -WLL licenses. Our correspondent reports, the CBDT made a presentation before the JPC on the status of its investigation last week and now the CBI will be asked to update the Committee on the progress it has made in the 2G scam probe.