Compare the strengths of "TCS", "Infosys" and "Wipro" in Telecommunication Sector ?
Compare the strengths of "TCS", "Infosys" and "Wipro" in general ?

Please take into account the following factors 
(1) Revenue
(2) Top 3 contracts
(3) Outsourcing capability
(4) Company Performance
    By Service Type
    By Customer Size
    By Geography
    By Channel
(5) Company Vision
(6) Company Strategy
(7) Differentiation, Strengths, and Competitive Advantage
(8) Core Competencies
(9) Services Offered

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