HYDERABAD - The crime branch of the Andhra Pradesh police Friday began probe into the Rs.70-billion accounting fraud in the city-based IT service firm Satyam Computer Services, even as the market regulator continued its probe for the second consecutive day and summoned before it the company's former chairman.

The Criminal Investigation Department's (CB-CID) team checked records at Satyam's headquarters here and spoke to associates of disgraced former chairman B. Ramalinga Raju to ascertain the veracity of his statement on the fraud.

While resigning as chairman of the firm Wednesday, Raju admitted that the company cooked its books resulting in an 'inflated (non-existent) cash and bank balances' for several years.

Chief Minister Y.S. Rajasekhara Reddy ordered the CB-CID probe Wednesday to 'look at the criminal angle into the entire episode'. Incidentally, the Congress government in the state has been criticised for being 'soft' towards Ramalinga Raju.

Reddy told reporters in Chennai that the CB-CID was conducting an independent probe into the whole scandal.

Speculations of Raju's imminent arrest were doing rounds for the third day in a row but the police continued to maintain that they would not take any action unless they receive a specific complaint.

However, Raju is likely to be arrested if market watchdog Securities and Exchange Board of India (SEBI), which is probing the scam, lodges a complaint. SEBI officials, who continued their probe here for the second consecutive day, have served Raju with summons to appear before them.

Raju's lawyer S. Bharat Kumar told reporters he would appear before SEBI officials at Satyam headquarters at 4 p.m. Saturday.

SEBI may also summon B. Rama Raju and V. Srinivas, who resigned as managing director and chief financial officer of the company respectively.