Aarthi Subramanian, 52
Group chief digital officer, Tata Sons
Previous Rank : 18
With nearly three decades of experience in the global technology business, Subramanian was the obvious choice to lead the Tata group’s digital team. Closely working with executive chairman N. Chandrasekaran, she is responsible for all digital initiatives. According to reports, she is already working with the CEOs of all Tata group companies to identify business opportunities in the digital space and is digitally streamlining internal functions to make operations more efficient.