PATNI

Patni Computer Systems Limited has submitted to the Exchange vide its letter dated April 12, 2012 a copy of Disclosure under Regulation 29(2) of SEBI (Substantial Acquisition of Shares and Takeover) Regulations, 2011 and Disclosure under Regulation 13(3) and 13(6) of the SEBI (Prohibition of Insider Trading) Regulations, 1992.

Mansfield (Mauritus) Limited and Suffolk (Mauritius) Limited has submitted to the Exchange vide its letter dated April 12, 2012 a copy of Disclosure under Regulation 29(2) of SEBI (Substantial Acquisition of Shares and Takeover) Regulations, 2011 for sale of 14,196,375 shares.

Patni Computer Systems Limited has informed the Exchange that the compensation & Remuneration Committee of Directors of the Company has approved the grant of 2,250 ADR linked Restricted stock Units ("ADR linked RSUs") at an Exercise Price of US$ equivalent to Indian Rs. 4/-per ADR to an eligible option holder of the Company and its subsidiaries, under the Company's Stock Option Plan ("Patni ESOP 2003 (Revised 2009)").Each ADR represent two underlying Equity shares of Rs. 2/- each of the Company.

Patni Computer Systems Limited has submitted to the Exchange a copy of disclosure under Regulation 13(6) of the SEBI (Prohibition of Insider Trading) Regulations,1992 and under SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011.

Mansfield (Mauritus) Limited and Suffolk (Mauritius) Limited has submitted to the Exchange a copy of Disclosure under Regulation 29(2) of SEBI (Substantial Acquisition of Shares and Takeover) Regulations, 2011.

Patni Computer Systems Limited has submitted to the Exchange a copy of disclosure under Regulation 29(1) of SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011 and Regulation 13(1) and 13(6) of the SEBI (Prohibition Of Insider Trading) Regulations, 1992.

Suffolk (Mauritius) Limited has submitted to the Exchange a copy of Disclosure under Regulation 29(1) of SEBI (Substantial Acquisition of Shares and Takeover) Regulations. 2011.

Patni Computer Systems Limited has submitted to the Exchange a copy of disclosure under Regulation 29(1) of SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011 and Regulation 13(1) and 13(6) of the SEBI (Prohibition Of Insider Trading) Regulations, 1992.

Mansfield (Mauritus) Limited/ Suffolk (Mauritius) Limited has submitted to the Exchange a copy of Disclosure under Regulation 29(1) of SEBI (Substantial Acquisition of Shares and Takeover) Regulations. 2011.

iGATE Global Solutions Limited has submitted to the Exchange a Revised copy of disclosure of acquisition under Regulation 13(1) and 13(6) of Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 1992.

Patni Computer Systems Limited has submitted to the Exchange a copy of Disclosure under Regulation 13(6) of the SEBI (Prohibition of Insider Trading) Regulations, 1992.

iGate Global Solutions Limited has submitted to the Exchange a copy of disclosure of details of Acquisition under Regulation 7(1) of Securities and Exchange Board of India ( Substantial Acquisition of Shares and Takeovers ) Regulations, 1997.

Patni Computer Systems Limited has submitted to the Exchange a copy of Disclosure under Regulation 7(3) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulation, 1997 and Regulation 13(6) of the SEBI(Prohibition of Insider Trading) Regulations,1992.

Patni Computer Systems Limited has submitted to the Exchange a copy of Disclosure under Regulation 7(3) of SEBI (Substantial Acquisition of Shares and Takeovers) Regulation, 1997 and Regulation 13(6) of the SEBI(Prohibition of Insider Trading) Regulations,1992.

Patni Computer Systems Limited has submitted to the Exchange a copy of Disclosure under Regulation 13(6) of SEBI (Prohibition of Insider Trading) Regulations, 1992.

Patni Computer Systems Limited has informed the Exchange that the Compensation & Remuneration Committee of Directors of the Company, vide circular resolution dated October 01, 2010, has approved the grant of 750,220 Restricted Stock Units ("RSUs") (including 97,090 ADR Linked options representing 194,180 RSUs) at an Exercise Price of Rs.2/- per share to 461 eligible option holders of the Company and its subsidiaries, under the Company's Stock Option Plan ("Patni ESOP 2003 (Revised 2009)").

Patni Computer Systems Limited has submitted to the Exchange the disclosure, in 'Form C', received from HDFC Asset Management Company Limited on behalf of HDFC Mutual Fund, as contemplated under Regulation 13(3) of the SEBI (Prohibition of Insider Trading) Regulations, 1992. A copy of the same shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/Corporate Announcements).<a href=/content/corporate/Patni_Reg_30092009.zip target=NEW> For more details click here.</a>

Patni Computer Systems Limited has informed the Exchange that "the Compensation Committee of Directors of the Company vide circular resolution dated 15th December 2006 allotted 44,050 Equity Shares of par value of Rs. 2/- each to certain employees of the Company pursuant to exercise of the options granted to them under the Company's Stock Option Plan 2003 (Patni ESOP 2003)".

HSBC Investments (Hong Kong) Limited has informed the Exchange that HSBC Global Investments Funds-A/c HSBC Global Investment Funds (Mauritius) Limited along with the PAC HSBC Investment (Hong Kong) Limited have acquired 514,350 shares and 132,800 ADSs of Patni Computer Systems Limited on December 16, 2005. The mode of acquisition is Market Purchase and the shareholding of HSBC Global Investments Funds-A/c HSBC Global Investment Funds (Mauritius) Limited along with the PAC HSBC Investment (Hong Kong) Limited after the said acquisition is 10,076,670 shares aggregating to 7.24% of the total paid

Patni Computer Systems Limited has informed the Exchange that HSBC Global Investments Funds-A/c HSBC Global Investment Funds (Mauritius) Limited along with the PAC HSBC Investment (Hong Kong) Limited have acquired 514,350 shares and 132,800 ADSs of Patni Computer Systems Limited on December 16, 2005. The mode of acquisition is Market Purchase and the shareholding of HSBC Global Investments Funds-A/c HSBC Global Investment Funds (Mauritius) Limited along with the PAC HSBC Investment (Hong Kong) Limited after the said acquisition is 10,076,670 shares aggregating to 7.24% of the total paid up cap

Patni Computer Systems Limited has informed the Exchange that General Atlantic Mauritius Limited has sold 4,062,000 shares aggregating to 3.2% of the share capital of Patni Computer Systems Limited on September 12, 2005 and the shareholding after the said sale is 27,209,697 shares aggregating to 21.7% of the share capital of Patni Computer Systems Limited.

Patni Computer Systems Limited has informed the Exchange that HSBC Global Investment Funds - A/C HSBC Global Investment Funds (Mauritius) Limited along with PAC: HSBC Investments (Hong Kong) Limited has acquired 435,000 shares aggregating to 0.348% of the total paid up capital of the Patni Computer Systems Limited on August 03, 2005. The mode of acquisition is Market Purchase and the shareholding of HSBC Global Investment Funds - A/C HSBC Global Investment Funds (Mauritius) Limited alongwith PAC: HSBC Investments (Hong Kong) Limited after the said acquisition is 6,405,323 shares aggregating to

HSBC Investments (Hong Kong) Limited has informed the Exchange that HSBC Global Investments Funds-A/c HSBC Global Investment Funds (Mauritius) Limited along with the PAC HSBC Investment (Hong Kong) Limited have acquired 435,000 shares of Patni Computer Systems Limited on August 03, 2005. The mode of acquisition is Market Purchase and the shareholding of HSBC Global Investments Funds-A/c HSBC Global Investment Funds (Mauritius) Limited along with the PAC HSBC Investment (Hong Kong) Limited after the said acquisition is 6,405,323 shares aggregating to 5.12% of the total paid up capital of Patni

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated March 31, 2005 allotted 38,600 Equity shares of par value of Rs.2/- each to certain employees of the Company pursuant to exercise of the options granted to them under the Company's Stock Option Plan 2003 (Patni ESOP 2003).

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated March 31, 2005 allotted 38,600 Equity shares of par value of Rs.2/- each to certain employees of the Company pursuant to exercise of the options granted to them under the Company's Stock Option Plan 2003 (Patni ESOP 2003).

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated October 01, 2004 have approved the grant of 27,76,232 options under the Company's Stock Option Plan 2003 (Patni ESOP 2003) to certain employees of the Company at an Exercise Price of Rs.338/- each per share.

Barclays has informed the Exchange that General Atlantic Mauritius Limited have sold 4,100,000 shares amounting to 3.3% of the total share capital of Patni Computer Systems Limited and the shareholding after the said sale is 31,271,697 shares.

Patni Computer Systems Limited has informed the Exchange that General Atlantic Mauritius Limited(GAML) has sold 41,00,000 equity shares amounting to 3.30% of the total paidup sharecapital of Patni Computer Systems Limited on November 19,2004.The shareholding of General Atlantic Mauritius Limited after the said sale is 31271697 equity shares of the company.