The Tata Group, one of India’s oldest and most reputed salt-to-software conglomerates, with a market cap of $277 billion, is fighting an existential battle that could fundamentally change its character.  At the heart of it lies Tata’s unique corporate structure, designed 130 years ago, an anomaly in the modern corporate world. Tata Trusts, a group of charitable organsiations with a stellar record of public service, own 66 per cent of Tata Sons, the unlisted company that contro