Ratan N. Tata has been the Chairman of Tata Sons, the holding company of the Tata Group, since 1991. He is also the Chairman of the major Tata companies including Tata Motors, Tata Steel, Tata Consultancy Services, Tata Power, Tata Tea, Tata Chemicals, Indian Hotels, Tata Teleservices and Tata AutoComp. During his tenure, the Group’s revenues have grown over nine-fold to annualised Group revenues of over $ 55 bn.