Shravin Bharti Mittal, the heir to his father Sunil Bharti Mittal-led Bharti Enterprises, has relocated from the UK amid tax hikes on wealthy residents. The 37-year-old now lists the United Arab Emirates as his residence, according to a company filing. Shravin also set up an Abu Dhabi branch last month for his investment firm, Unbound, which he founded in London.