Of the six chairmen that Tata group has had in its 148 years, the longest serving was Jehangir Ratanji Dadabhoy
The Tata empire turns 150 this year. R Gopalakrishnan, former director, Tata Sons Ltd, imagines a conversation among the group's founder Jamsetji, his son Dorabji, his successor, Nowroji Saklatwala, and his successor, J R D Tata.