PATNI

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 Mr. G.K. Patni and Mr. A.K. Patni have been re-appointed as the Executive Directors of the Company for the period of five years w.e.f. October 24, 2005 in terms of Articles of Association of the Company and provisions of the Companies Act, 1956. The said re-appointments are subjects to approval of the members at the next General Meeting of the Company.

Patni Computer Systems Limited has informed the Exchange regarding a Press Release dated December 08, 2005, titled, "Patni Announces Pricing of American Depository Shares; Prices American Depository Share at $20.34 per ADS". The details of the Press Release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server /Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange regarding a Press Release dated November 22, 2005, titled, "Patni files Form F1 with Securities and Exchange Commission; Prepares to launch Indian Tender Offer, provides mid-quarter update". The details of the Press Release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server /Common/CorporateAnnouncements).

Patni Computer Systems Limited had informed the Exchange regarding a press release dated November 22, 2005, titled, "Patni files Form F1 with Securities and Exchange Commission; Prepares to launch Indian Tender Offer, provides mid-quarter update". The Company has now submitted to the Exchange a revised press release dated November 23,2005, the details of which shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server /Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that pursuant to notifications issued by the Government of India and the Reserve Bank of India, the Company is sponsoring a Secondary ADS Offering on the New York Stock Exchange (NYSE) of not more than 17,50,000 ADSs (represented by 35,00,000 equity shares of Rs. 2/- each) against the block of shares to be divested by Equity Shareholders of the Company. The Company is providing all Equity Shareholders the opportunity to participate as a Selling Shareholders in the Offering of ADSs, on the terms and conditions contained in a separate Invi

The Schedule of activities in relation to Invitation to Participate is as follows: Invitation Opening Date-November 24,2005. Invitation Closing Date-December 01,2005. Date by which communication regarding the acceptance of the Deposited Equity Shares will be dispatched-December 23,2005. Date by which consideration will be paid to the Selling Shareholders- No later than 30 days from the date of Closing of the Offering. Last date until which the Deposited Equity Shares may be held in the Escrow Account* -February 23,2006. *Pursuant to the relevant notification of the RBI, Equity Shares for the

Patni Computer Systems Limited has informed the Exchange that the Company has filed a Registration statement (Form F-1) with the Securities and Exchange Commission (SEC) for its initial Public Offering of 6,875,000 American Depository Shares (AdSs). Each ADSs represents two Equity Shares of Rs. 2/- each. The above said Offering includes a primary offering of 5,125,000 ADSs by the Company and 1,750,000 ADSs offering by the selling shareholders under Sponsored ADS Offering which was earlier approved by members of the Company and FIPB. In addition, the Underwriters have the option to purchase up

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated November 08, 2005 allotted 61,650 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 regarding a Press Release dated October 26, 2005, titled, "Patni's Q3 Revenues up 44% at US$ 118.3 million (Rs.5,197 million); Net Income increases by 10.3% at US$ 16.2 million (Rs.714 million)". The details of the Press Release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server /Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange regarding a press release dated October 05, 2005, titled 'Patni and i2 Enter into an Alliance to jointly Market i2 Master Data Management Solutions.' The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated September 30, 2005 allotted 1,53,650 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 September 16, 2005 allotted 8,875 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 regarding a Press Release dated September 15, 2005, titled, "Patni announces the setting up of its new CAO Office; Appoints Vijay Khare as its Chief Administrative Officer". The details of the Press Release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server /Common/CorporateAnnouncements).

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 total paid up capital of Patni Computer Systems Limited on September 12, 2005. The mode of sale is through the Open Market and the shareholding of General Atlantic Mauritius Limited after the said sale is 27,209,697 shares aggregating to 21.7% of the total paid capital of Patni Computer Systems Limited.

General Atlantic Mauritius Limited has informed the Exchange that they have sold 4,062,000 shares aggregating to 3.2% of the total paid up capital of Patni Computer Systems Limited on September 12, 2005. The mode of sale is Open Market and the shareholding of General Atlantic Mauritius Limited after the said sale is 27,209,697 shares aggregating to 21.7% of the total paid up capital of the Patni Computer Systems Limited.

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 regarding a Press Release dated September 01, 2005, titled, "Patni selected to provide Global Application Development Services to ABN AMRO; Expands on existing relationship to cover the Bank's global needs". The details of the Press Release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server /Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated August 17, 2005 allotted 9,550 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 Members of Patni Computer Systems Limited, at their EGM held on August 19, 2005, have approved the Sponsored ADS Offering not exceeding 6.5 million Equity Shares.

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 submitted to the Exchange a copy of the press release dated July 29, 2005, in respect of its Financial Results for the quarter ended June 30, 2005. The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated July 22, 2005 allotted 7,525 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 Board of Directors of the Company have approved Sponsoring a Secondary ADS Offering (the "Offering") against equity shares held by its existing shareholders in India. The Board decided that the Offering will consists of a maximum of 6.5 million equity shares, including the over-allotment option, if any, as may be decided by the Company in consultation with the Underwriters to the Offering. All the Equity Shareholders in India as on specified date to be determined would be eligible to tender their equity shares in the Offering on

Patni Computer Systems Limited has submitted to the Exchange a copy of the proceedings of the AGM of the Members of the Company held on June 14, 2005. The details of the same shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated June 24, 2005 allotted 12,150 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 submitted to the Exchange a copy of the Press Release dated June 27, 2005, titled, "Patni expands European operations; Opens office in Amsterdam, Appoints Eric Cramer as Vice-president - Benelux region". The details of the Press Release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server /Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the Members of the Company, at the AGM held on June 14, 2005, inter alia, approved the following resolutions: 1) Final dividend of Rs.2 per share (100% on an Equity Share of par value of Rs.2/-); 2) Reappointment of Mr. Louis Theodoor van den Boog as a Director of the Company, liable to retire by rotation; 3) Issue of American Depository Receipts (ADRs) upto US$ 150 million including the green shoe option.

Patni Computer Systems Limited has informed the Exchange regarding a press release dated June 08, 2005, titled "Patni Launches Defined Contribution BPO Service For Insurance Carriers". The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has submitted to the Exchange a copy of the notice of AGM of the shareholders of the Company to be held on June 14, 2005. A copy of the notice of the AGM shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange regarding a press release dated May 31, 2005, titled "Patni Computer Systems Strengthens Financial Services Executive Team - Hires Industry Veteran in Global Role". The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated May 20, 2005 allotted 25,775 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). Further, the Company has issued a press release dated May 24, 2005, titled 'Patni Computer Systems and Milliman, Inc. Enter into Preferred Vendor Alliance - Strengthens Insurance Expertise Ecosystem'. The details of the press relea

Patni Computer Systems Limited has informed the Exchange that the register of members and share transfer books will remain closed from June 09, 2005 to June 14, 2005(both days inclusive) for the purpose of payment of dividend @ 100% as recommended by the board at their meeting held on January 31,2005,subject to approval of members at the AGM to be held on June 14,2005.The dividend, if approved, shall be paid to all eligible members whose names appear on the register of members on June 09,2005.

Patni Computer Systems Limited has informed the Exchange that the BOD's of the Company at its meeting held on April 26, 2005 has approved the grant of 45,000 options under the Company's Stock Option Plan 2003 (Patni ESOP 2003) to the Independent Directors of the Company at an Exercise Price of Rs.381/- each per share. Further, the Compensation Committee of Directors of the Company vide circular resolution dated April 27, 2005 has approved the grant of 145,000 options under the Company's Stock Option Plan 2003 (Patni ESOP 2003) to certain employees of the Company at an Exercise Price of Rs.381/

Patni Computer Systems Limited has informed the Exchange that the company has issued a press release dated April 28, 2005, titled "Patni Computer Systems Launches Comprehensive Portfolio Accounting Service-Strengthens Financial Services Offerings Suite". The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the company has issued a press release titled "Patni's Q1 Revenues up 38% at US$ 99.4 million (Rs.4,337 million) - Net Income higher by 21% at US$ 15.6 million (Rs.682 million)". The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the company has issued a press release dated April 27, 2005, titled "Patni Computer Systems Contemplates ADR Offering". The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

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 March 04, 2005 allotted 11,600 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 company has issued a press release dated March 21,2005 titled "Patni wins awards for excellence in corporate performance". The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the Company has issued a press release dated March 21, 2005, titled 'Patni Computer Systems Adds Insurance Veterans to Growing Business Unit - Three Key Hires Bring combined 85 years Insurance Industry experience'. The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that Mr. Loek Van den Boog has been appointed as an additional director of the Company w.e.f. March 15, 2005.

Patni Computer Systems Limited has informed the Exchange that the BoDs of the company,at its meeting held on February 19, 2005 has approved, subject to the requisite shareholders' and regulatory approvals, the raising of additional capital by way of issue of American Depository Receipts (ADRs) upto the aggregate of US$150 million including green shoe option.

Patni Computer Systems Limited has informed the Exchange that the company has issued a press release dated February 21, 2005 titled 'Patni's Board of Directors approves a Primary ADR offering of up to USD 150 Million'. The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the company has issued a press release dated February 17, 2005, titled "Patni ramps up Pune operations-increases seating capacity by 2000-Earmarks 100 crores for expansion on eve of completing a decade." The details of the same shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the Company has issued a press release dated January 31, 2005 titled 'Patni's CY 2004 Net Income increases by 38%; Revenues Up 30% at US$ 327 million (Rs.14,131 million)'. The details of the press release shall be available on the NSE website (http://www.nseindia.com) under: Corporates > Latest Announcements and on the Extranet Server (/Common/CorporateAnnouncements).

Patni Computer Systems Limited has informed the Exchange that the BOD�s of the Company, at their meeting held on January 31, 2005, have recommended a final dividend of 100% for the year 2004, subject to approval of the members at the AGM.

Patni Computer Systems Limited has informed the Exchange that the Compensation Committee of Directors of the Company vide circular resolution dated January 06, 2005 allotted 18,000 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).