Sanjeev Chawla is alleged to have had a big role in the infamous South AFrica match-fixing case in 2000, which involved Hanse Cronje.
When asked whether both Delhi Police and BCCI will look into the matter, Singh said, "We cannot say. It is up to the Delhi Police. He is in their custody and we cannot take it for granted but we contact them definitely."
On Thursday, Chawla was sent to 12-day police custody by Delhi's Patiala House Court.
Public Prosecutors Atul Kumar Shrivastava and Anil
Paswan told the court that the accused is required to be confronted with evidence in connection with match-fixing of five ODI matches and some Test matches that took place in 2000.
Advocates Vineet Malhotra and Hemant Shah appeared for Sanjeev Chawla and opposed the Delhi Police plea seeking custodial interrogation stating that the chargesheet has been filed in the case.
The lawyers also said that as per the extradition terms and conditions, the government has assured that Chawla would be only kept in Tihar Jail.