The Central Bureau of Investigation (CBI), probing the multi-crore fraud in Satyam Computers, today said it had completed 90 per cent of investigation into the case and was now focusing towards fund diversion aspect, if any by the Satyam accused.

"As far as Satyam scam is concerned most of the things (investigations) are over. We can say 90 per cent investigation is complete. The basic manipulation, falsification of accounts, the criminal breach of trust and other charges which we have already framed and now we have to prove it (offences) in the court of law through the evidences we have collected," CBI DIG V V Laxminarayana told reporters here.

All the details have been presented with the court in the form of three charges-sheets including on Income-tax evasion, Laxminarayana said adding "We also want to see that the trial is completed as early as possible and that's why we are asking for video-conferencing of the prime accused Ramalinga Raju."

CBI, which is prosecuting the Satyam accused, had recently sought permission of the court to establish video links with the Nizam's Institute of Medical Sciences (NIMS) where Satyam founder B Ramalinga Raju is admitted, to expedite the case as he was not attending court proceedings since September last year on medical advice.

The CBI official said they were now looking into the aspect of fund diversion if any from Satyam Computers.

"We are waiting for some replies from six countries through the Letter of Rogatories and once they come ... we will conclude on that aspect also.

We are investigating if fund diversion has happened and only after the evidence is collected and if there is any sufficient material to go ahead ... then we will proceed and file another supplementary charge-sheet," Laxminarayana said.

"Infact, we are asking them (foreign countries) to expedite through the Interpol and we are expecting that the replies will come very soon.

Already replies from three countries have come and we are hoping to get significant information on foreign accounts held by Satyam Computers from British Virgin Islands," he said.

"We have been asking other channels and are in constant touch with corporate affairs ministry and our endeavour is to see that the information comes faster," Laxminarayana added.