Hyderabad, July 9 (IANS): A city court Thursday allowed the Central Bureau of Investigation (CBI) to conduct lie detector and brain mapping tests on Satyam Computer Services' disgraced founder and former chairman B. Ramalinga Raju and two other accused in the Rs.78 billion financial fraud.

The XIV additional chief metropolitan magistrate allowed the investigating agency to conduct the forensic tests on Ramalinga Raju, his brother Rama Raju and the IT major's former chief financial officer Vadlamani Srinivas.   

The court asked the CBI to complete the polygraph and brain mapping tests on the three men in eight weeks.   

The CBI had filed the petition in March, seeking the court's permission for the tests on the ground that the accused were not revealing all the details about the fraud. The agency told the court that during their interrogation the accused had not told it everything about the fraud.   

The CBI has already filed a charge sheet against the three for fudging the books of accounts and inflating the company's profits and turnover.   

It was on Jan 7 that Ramalinga Raju quit as Satyam chairman while admitting to a Rs.78 billion accounting fraud - the biggest in India's corporate history.   

The Raju brothers were arrested by Andhra Pradesh Police on Jan 9 and former CFO Srinivas a day later. The former auditors and three former employees of Satyam also were later taken into custody.   

All the accused are facing charges of cheating, criminal conspiracy, falsification of records and forgery.   

The CBI told the state high court last month that Ramalinga Raju also diverted and misappropriated funds of Satyam through foreign bank accounts. In a written submission during the hearing of bail application of former auditor S. Gopalakrishnan, the CBI said it sought Interpol's help to identify the end users of these funds.