Bombay House, the Tata group’s headquarters, needs to come up with a new recipe for growth to keep the group on top of India’s private sector league table. Consider the numbers: The group has always been over-dependent on Tata Consultancy Services (TCS), but that seems to have increased rapidly in recent years. In 2017-18, the software major accounted for over 90 per cent of the combined dividend income that Tata Sons received from listed group companies. Also, TCS made up for nearly three-fourths of the combined market capitalisation of the top 10 companies; this share was just about 60 per