New Delhi: The Supreme Court on Thursday refused to appoint a SIT for further probe in 2G spectrum scam but sought the assistance of Central Vigilance Commission to help it monitor the investigation done by different agencies in view of involvement of several influential persons in the scam.

"Keeping in view the nature of the case and involvement of a large number of influential persons, we feel that it will be appropriate to require the Central Vigilance Commissioner and the Senior Vigilance Commissioner appointed under Section 3(2) of the 2003 CVC Act to render assistance to the Court in effectively monitoring further investigation of the case," a bench of justices G S Singhvi and A K Ganguly said.

The Apex Court directed CBI, ED and other government agencies to give their status report in a sealed envelope to the CVC which would give its suggestion to it on the probe done by them.

The Court passed the order on a plea of an NGO, Center for Public Interest Litigation, and Janata Party President Subramaniun Swamy, seeking its direction to appoint SIT by raising questions on the probe done by the government agencies.

The court, however, was not convinced by its arguments and expressed satisfaction on the probe done so far by the agencies.

"Although, initially, CBI may not have taken up the matter relating to investigation of 2G case with requisite seriousness, after December 16, 2010, it has satisfactorily conducted the investigation. Therefore, there is no justification to appoint a group of persons to directly or indirectly scrutinise or supervise the further investigation being conducted by CBI and other agencies," the bench said.

The court said that in future copies of the report(s) of the investigation conducted by CBI and other agencies shall be made available to the Central Vigilance Commissioner in sealed envelopes and within next one week and the CVC shall examine the report(s).

It said the CVC shall send their observations/suggestions to the Apex Court in sealed envelopes which shall be considered by it along with the report(s) of CBI and other investigating agencies.

The court, however, made it clear that its order "shall not in any manner be construed as a reflection on the integrity of the investigation so far done by the team of CBI and other investigating agency or which may be done in future or their competence to effectively perform the job in relation to 2G case".