The Delhi High Court on Tuesday asked the Central government and the CBI to file a reply to a plea seeking a direction to constitute a SIT to look into the abuse of power by some officials of the probe agency by illegally tapping phone calls.

The court was hearing a plea filed by lawyer and social activist Sarthak Chaturvedi, who has also sought a direction to the Central government for framing comprehensive guidelines regarding tracing, tapping and surveillance of phone calls