The three cricketers arrested in connection with the T20 spot-fixing scandal were interrogated together for the first time by police which said the case is still "open-ended".
Sreesanth, Ajit Chandila and Ankeet Chavan were questioned together by the personnel of Delhi Police's Special Cell.
The trio were arrested two days ago from Mumbai for their alleged involvement in spot-fixing in three matches.
A senior police official said they were cooperating with the investigations.
Lawyers of all the three players have denied the involvement of the cricketers in the spot-fixing.
Sources claimed bookies paid Rs 10 lakh as advance to Sreesanth and it was collected by his close friend Jiju Janardhan who was also arrested. Bookies had allegedly struck a deal of Rs 40 lakh with Sreesanth through Jiju.
Asked about evidences against the Kerala pacer, the sources claimed he used Jiju's phone, which was tapped, to speak to "others".
"We have strong evidence against him. We know how the advance money he got from the bookies," a senior police officer said.
Investigators said they do not feel the need to conduct searches at the residences of Sreesanth and Chavan "as of now" as they have enough proof against them.
"We are satisfied with the progress in the probe but this is not the end. We have asked SetMax to provide us with raw footage of the three matches in which the arrested players have allegedly indulged in spot-fixing. The players have willingly indulged in this," the officer said.