Sebi had earlier slapped a penalty of Rs 1,849 crore on the company, and banned it from market for 14 years.
The market regulator today filed two complaints in the special Economic Offences Court against Raju brothers, former CFO Vadlamani Srinivas and two former auditors of international auditing firm PWC, among others.
"While one complaint deals with unfair trade practises allegedly adopted by Raju, the other highlights violations of the Insider Trading Regulations committed by Raju and his kin," said B S Siva Prasad, Sebi's lawyer.
On January 7, 2009, Raju, then the Chairman of Satyam Computer, sent an email to the Sebi, confessing to inflating the cash and bank balances of the company, besides understating liabilities, etc. Satyam was the country's fourth largest IT firm then.
The company was later acquired by Tech Mahindra.
According to Sebi, Raju brothers made "unlawful gains" to the tune of Rs 543.93 crore from sale of shares and Rs 1,258.88 crore by pledging some shares.