 
 <translate> To answer the above question, the relevant sentence is: Natarajan Chandrasekaran took over as Chairman of Tata Sons on 21 February 2017.
So, the answer is Natarajan Chandrasekaran. <ibo> Iji zaa ajụjụ a dị n'elu, ahịrịokwu dị mkpa bụ: Natarajan Chandrasekaran weghaara dịka onye isi oche nke Tata Sons na 21 February 2017. Ya mere, azịza ya bụ Natarajan Chandrasekaran. 