It also slashed the price target on the stock to 90 rupees from 140 rupees earlier.
Mahindra Satyam shares were down 6 percent at 92.95 rupees by 0333 GMT in a slightly firm Mumbai market.
Late on Wednesday, Mahindra Satyam reported a net loss for 2009 and 2010, giving the first view of its financials nearly two years after it was hit by India's biggest corporate fraud.