- A. C P Jain was the Chairman and Managing Director of NTPC (National Thermal Power Corporation). (A matches with 2) - B. S Ramadorai served as the CEO and MD of Tata Consultancy Services (TCS). (B matches with 3) - C. Sunil Arora was formerly the Managing Director of Indian Airlines. (C matches with 1) - D. Vivek Paul was the Vice Chairman of Wipro Technologies. (D matches with 4)