Mumbai, March 29 -- Steel magnate Lakshmi Mittal, a long-time UK resident, is considering leaving the country in response to the impending abolition of the so-called 'non-dom' tax regime, according to a Financial Times (FT) report. Mittal, also known as LNM, whose family fortune is estimated at £14.9 billion (Rs.1.65 trillion), is reportedly exploring his options following the Labour government's decision to end the tax arrangement that allowed 'non-domiciled' UK residents to avoid paying taxes in the UK on their foreign income and gains....