July 27, 2012 SECURITIES & EXCHANGE COMMISSION 450 Fifth Street, NW Washington, DC 20549 Attn.: Document Control RE: American Depositary Receipts representing two deposited shares of Patni Computer Systems Limited (Form F6, Registration No. 333129788) Ladies and Gentlemen: Pursuant to Rule 424(b)(3) under the Securities Act of 1933, as amended, on behalf of The Bank of New York Mellon, as Depositary for securities against which American Depositary Receipts are to be issued, we attach a copy of the new prospectus (Prospectus) reflecting the change in the company name to iGATE Computer Systems Limited. As required by Rule 424(e), the upper right hand corner of the Prospectus cover page has a reference to Rule 424(b)(3) and to the file number of the registration statement to which the Prospectus relates. Pursuant to Section III B of the General Instructions to the Form F6 Registration Statement, the Prospectus consists of the ADR certificate with the revised name for iGATE Computer Systems Limited. The Prospectus has been revised to reflect the new name, and has been over stamped with: Effective July 27, 2012 the Companys name has changed to iGATE Computer Systems Limited. Mark Gendler Senior Associate The Bank of New York Mellon Depositary Receitps 2128152729 mark.gendler@bnymellon.com 101 Barclay Street, 22nd Floor West, New York, NY 10286