Under arrest, Chidambaram remains 'non-cooperative' in probe: Sources

A day after the dramatic arrest, the CBI officials began the intense grilling of former Union Minister P Chidambaram at the agency’s headquarters on Thursday. The sources say that the questioning began at around 9 am. However, the sources say that Chidambaram remains ‘non-cooperative’ during the probe. In fact, he hit back at officials with more questions during the probe.