Shashank Manohar, the former BCCI president, has called for an investigation by an external investigation agency of all the IPL 2013 matches. Manohar said the BCCI should not solely depend on the board's and the ICC's Anit-Corruption and Security Units (ACSU) to keep cricket clean as they do not have the authority to track illegal activities - tracking phone conversations, for example.

"The BCCI should immediately file a criminal complaint with the investigating agencies, urging them to probe all 75 games [76] in the current IPL edition," Manohar told the Times of India. "The board should provide them [the investigating agency] with a raw feed of the games as well as CCTV footage recorded at every venue.

"It has to deal with this menace with an iron fist. The board or ACSU do not have any machinery or legal authority to track the illegal activities, so it should not depend on these agencies alone."

His comments come in wake of the alleged spot-fixing in IPL 2013, in relation to which three Rajasthan Royals cricketers were arrested on May 16. The controversy has since grown, with top Chennai Super Kings official Gurunath Meiyappan being arrested for allegedly betting on IPL games, and his father-in-law - who is also the BCCI president and managing director Super Kings' owner, India Cements - N Srinivasan refusing to resign from his post with the Indian board despite mounting pressure to do so.

Manohar said in an earlier interview with the Telegraph that he had spoken to some of the BCCI officials before their emergent working committee meeting on May 19, and told them if they wanted "to clean things up, then do it thoroughly. If, at the end of it all, 13 and not three players are involved in fixing, so be it".

Apart from making sure the IPL is clean, now Manohar said it's important to have stringent processes in place for international cricket played in India too. "The board should approach the central home minister, requesting governmental support in investigating the criminal actions in any event run by the BCCI, which would also include international fixtures. It should request [the minister] to send an advisory to all states one month before the start of an event, so that the investigating machinery can swing in action well in advance to prevent any match-fixing , betting or spot-fixing."

The BCCI, he said, should ask players to register their mobile-phone numbers with the board, so that the investigating agencies could monitor things with more efficiency.