New Delhi, June 19 -- India and the UK rebalanced their signed trade deal early on Wednesday, adjusting Britain's proposed steel safeguards hours before announcing operationlisation of the free trade agreement from July 15, with London extending exemption from social security contribution for Indian professionals in the UK by another two years over initially agreed three-year period in a separate agreement, people familiar with the matter said. This, agreement, the Double Contribution Convention, is reciprocal (in that it will also apply to UK professionals in India), and result in additional savings of $1 billion, the people added. London also allowed duty-free access to over 800 tariff lines of Indian steel goods as its proposed steel saf...