'I will not jump into this. The commission will go to higher courts with the complaint that the commission's functioning is being intervened.... The CBI has acted on the complaint of an accused but not the commission,' Buta Singh added.

Earlier in the day, the CBI searched Sweety Singh's house in south Delhi and found three unlicensed pistols and 38 cartridges. A case under the Arms Act has been registered against him at the Nizamuddin police station.

'Following Sweety Singh's interrogation, a CBI team reached his house in south Delhi today (Saturday) morning and conducted searches. During the search three unlicensed pistols and cartridges were recovered,' a senior CBI official said, requesting anonymity.

However, Buta Singh refuted the charges. 'The licences are there and only he (Sweety) knows where they are,' he said.

A CBI official in Mumbai had earlier said that Buta Singh may also be questioned in connection with the corruption charges against his son.