How the Mistrys came to own 18.37% of Tata Sons: a partnership that began in 1930
The Shapoorji Pallonji family owns 18.37% of Tata Sons — the largest holding outside the Tata Trusts. It did not buy that stake from the Tatas. It traces to a loan made to a struggling Tata group in the 1920s, converted into equity and sold on in 1930. Here is the full chain, and where it turned adversarial.

