Shravin Bharti Mittal, son of Bharti Airtel founder Sunil Mittal and a key investor in British telecom giant BT Group Plc, has officially relocated from the United Kingdom to the United Arab Emirates amid tightening tax regulations for high-net-worth individuals. His move underscores a growing trend among global billionaires exiting Britain in response to reforms eliminating long-standing tax breaks for non-domiciled residents. The shift not only signals a wealth migration but also challenges the UK's ability to retain global financial talent.