The country's largest software exporter, Tata Consultancy [Get Quote] Service, on Monday said some Satyam [Get Quote] Computer clients have turned to the Tata company on their own, adding it would not approach the clients of the scam-tainted firm.

"We are not approaching the clients of Satyam pro-actively ... but some of them have approached us on their own," TCS CFO S Mahalingam said here on the sidelines of the CII Partnership summit.

According to reports, a US client has terminated its contract with Satyam following the disclosures, citing uncertainty in the company.

It is widely believed that Satyam Computer's clients will migrate to competitors such as Infosys [Get Quote], TCS and Wipro [Get Quote], and according to a broking house report, TCS is likely to gain the most from it because it has the highest number of common clients.

Mahalingam said Satyam is a one-off incident but enough checks and balances should be there to prevent such occurrences.