Appoints Brian Stones as Executive Vice-President to lead Europe.

LONDON, UK, 4 June 2007: Patni Computer Systems (BSE: PATNI COMPUT, NSE: PATNI, NYSE: PTI) announced the appointment of Brian Stones as Executive Vice-President responsible for its European operations.

Speaking on the appointment, Mr. Mrinal Sattawala, COO, Patni said, “We are witnessing strong growth with tremendous opportunity in Europe and hence significant investments are being channelled to strengthen our operations in the region. We are pleased to appoint Brian Stones to spearhead this endeavour. Mr. Stones’ exposure to international, cross-functional business environments and his extensive management experience makes him a valuable asset for Patni.”

Patni’s European business showed a robust growth of over 60% last year. Patni already enjoys significant presence in European countries like Germany, Sweden, Netherlands and the UK. The European region accounted for 14.2% of Patni’s revenues for the quarter ended March 31 st 2007.

Commenting on his appointment, Mr. Brian Stones, Executive Vice-President, Patni said, “I am very excited to be a part of this dynamic team at Patni. Indian IT Services providers in Europe face unique issues when competing with the traditional European providers on their home ground. Patni with its customer focused approach and commitment to understanding the local market issues is well poised to maintain its strong growth path.”

Mr. Stones has a very successful track record in direct and indirect sales, global account management and general business management in IT Services, consulting and outsourcing.

Prior to joining Patni, Mr. Stones was a Senior Vice-President with ACS Inc. for two years, responsible for the business operation in Europe. He also worked as a Vice-President for Capgemini and was formerly a Senior Partner at Ernst & Young, most notably as the Leader of the Global Client Consulting business in Europe. Overall, Mr. Stones has over 28 years of international business experience in the European sphere.

Complementing his business expertise, Mr. Stones has a solid academic background in Economics and Business Science, gaining honours degrees in both.

About Patni Computer Systems:
Patni Computer Systems Limited (BSE: PATNI COMPUT, NSE: PATNI, NYSE: PTI) is a global provider of IT Services and business solutions, servicing Global 2000 clients. Patni caters to its clients through its industry-focused practices, including insurance, financial services, manufacturing, life sciences, telecommunications and media & entertainment, and its technologyfocused practices.

With an employee strength of over 12,000; multiple global delivery centres spread across 12 cities worldwide; 21 international offices across the Americas, Europe and Asia-Pacific; Patni has registered revenues of US$ 579 million for the year 2006.

Patni’s service offerings include application development and maintenance, enterprise application solutions, business and technology consulting, product engineering services, infrastructure management services, customer interaction services & business process outsourcing, quality assurance and engineering services.

Committed to quality, Patni adds value to its client's businesses through well-established and structured methodologies, tools and techniques. Patni is an ISO 9001: 2000 certified and SEI-CMMI Level 5 organization, assessed enterprise wide at P-CMM Level 3. In keeping with its focus on continuous process improvements, Patni adopts Six Sigma practices as an integral part of its quality and process frameworks.

For more information on Patni, visit www.patni.com .

Safe Harbor:
Certain statements in this release concerning our future growth prospects are forward-looking statements, which involve a number of risks, and uncertainties that could cause actual results to differ materially from those in such forward-looking statements. The risks and uncertainties relating to these statements include, but are not limited to, risks and uncertainties regarding fluctuations in earnings, our ability to manage growth, intense competition in IT Services including those factors which may affect our cost advantage, wage increases in India, our ability to attract and retain highly skilled professionals, time and cost overruns on fixed-price, fixed-time frame contracts, client concentration, restrictions on immigration, our ability to manage our international operations, reduced demand for technology in our key focus areas, disruptions in telecommunication networks, liability for damages on our service contracts, the success of the companies in which Patni has made strategic investments, withdrawal of governmental fiscal incentives, political instability, legal restrictions on raising capital or acquiring companies outside India, and unauthorized use of our intellectual property and general economic conditions affecting our industry.The company does not undertake to update any forward-looking statement that may be made from time to time by or on behalf of the Company.

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