Indian conglomerate Tata Sons rejects controlling charities' illegality claims in letter, sources say ↧ ↧ Indian conglomerate Tata Sons rejects controlling charities' illega... Indian conglomerate Tata Sons on Thursday told its controlling charities' chief Noel Tata ​that its decision to appoint N. Chandrasekaran as chairman ‌was legally correct and in line with the company's internal governance framework, two sources with direct knowledge of the letter told Reuters.