New Delhi, Aug 2 - Former union home minister Buta Singh Sunday accused the Central Bureau of Investigation (CBI) of 'victimising' him and his son Sarabjot alias Sweety Singh, who was arrested by the probe agency for allegedly accepting a Rs.1 crore bribe.

'The CBI is corroborating with the complainant and is not playing the role of a investigating agency. I and my son are being victimised,' Buta Singh told reporters at a press conference here.

The former union minister, who is now chairman of the National Commission for Scheduled Castes/Scheduled Tribes, also claimed that he was being politically targeted, but refused to name any political party.

'I will reveal this when the right time comes,' Buta Singh said.

His son Sweety Singh was arrested Friday on charges of accepting Rs.1 crore bribe - the first lot of the Rs.3 crore (Rs.30 million) that he had allegedly demanded from a contractor to have a case against him withdrawn by the Scheduled Castes/Scheduled Tribes commission that Buta Singh heads.

Buta Singh's son has been remanded to police custody by a Mumbai court till Aug 5.

On Saturday, the CBI seized three unlicensed pistols and 38 cartridges from Sweety Singh's Jangpura residence in south Delhi.