PATNI

Patni Computer Systems Limited has informed the Exchange regarding a press release, dated, April 18, 2006, titled, "Patni joins Mainframe Migration Alliance - Alliance to focus on seamless migration of mission - critical mainframe applications to a Microsoft Windows-based architecture" 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/Corporate Announcements).

Patni Computer Systems Limited has informed the Exchange regarding a press release, dated, April 13, 2006, titled, "Patni Computer Systems Partners with GEOCOMtms- To provide IT Services in Fleet Management Software - Provides GEOCOMtms Strategic Advantage in Black End Integrations Services for its Customers" 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/Corporate Announcements).

Patni Computer Systems Limited has informed the Exchange regarding a press release, dated, April 06, 2006, titled, "Patni Announces IT Services Agreement with Disney Mobile".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/Corporate Announcements).

Patni Computer Systems Limited has informed the Exchange regarding a press release, dated, March 23, 2006, titled, "Patni wins significant multi-services telecom deal from UK's largest independent retailer of mobile communications; The Carphone Warehouse win strengthens Patni's presence in Europe." 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/Corporate Announcements).

Patni Computer Systems Limited has informed the Exchange regarding a press release, dated, March 07, 2006, titled, "Acclamation Systems selects Patni Computer Systems to provide Business Optimization Services - Strageic Partnership to leverage Luminx and Business process management expertise to service Healthcare payers." 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/Corporate Announcements).

Patni Computer Systems Limited has informed the Exchange regarding a press release dated March 06, 2006, titled, "Patni and Citycompass announce first European Summit in Scotland to evaluate Mif ID business benefits." 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/Corporate Announcements).

Patni Computer Systems Limited has informed the Exchange regarding a press release, dated, March 02, 2006, titled, "Survey finds outsourcing budgets expected to rise over next year - Patni computer systems polls IT decision makers on outsourcing strategies at the Patniconnect conference." 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/Corporate Announcements).

Patni Computer Systems Limited has informed the Exchange regarding a press release, dated, February 27, 2006, titled, "Kitcoff-APSI Selects Patni's Defined Contribution BPO Service; Maximizes Consulting and Administration Profits Through Patni Expertise." 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/Corporate Announcements).

Patni Computer Systems Limited has informed the Exchange regarding a Press Release dated February 07, 2006, titled, "Patni partners with SAP to target the SMB sector in India - To focus on niche verticals". 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 February 01, 2006, titled, "Patni's CY2005 Revenues up 38% at US$ 450.3 million (Rs.20,242 million); Net Income higher by 11.3% at US$ 60.9 million (Rs.2,736 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 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 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 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 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 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 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 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 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 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 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 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 Company has on December 21, 2004, issued a press release titled 'Patni receives Award for Excellence in Electronics'. The details of the press release issued by the company regarding 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 on November 18, 2004, issued a press release titled 'Patni ranked amongst 10 Best Companies to work for in India'. The details of the press release issued by the company regarding 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 regarding a press release titled 'Patni enters Telecommunications vertical - Acquires Cymbal Corporation in US$ 68 million'. The details of the press release issued by the company regarding 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 through Patni Computer Systems, Inc., its wholly owned subsidiary in the US, has entered into a definitive agreement to acquire Cymbal Corporation Inc., a California based IT Services company for a approximately USD 68 million in cash to be paid over a period of time, subject to adjustments. Cymbal Corporation, with its domain expertise in the Telecommunications Service Provider (TSP) market, brings an opportunity for the Company to : 1) make an entry into the Telecommunications vertical with over 20 customers, with many