New Delhi, July 22 -- Former senior diplomat Mahesh Sachdev on Tuesday said that the most significant outcome of Prime Minister Narendra Modi's visit to the United Kingdom would be the signing of a bilateral Free Trade Agreement (FTA), which could substantially boost trade and investment between the two nations.

"I'd like to emphasise that the seminal point of the visit is signing of the bilateral free trade agreement which would, cover very substantial part of bilateral trade and free them from high tariffs or other restrictions," Sachdev said.

"It would also have an impact on our services sector because they are intertwined with the merchandise goods as well. Bilateral trade was USD 55 billion last year, last financial year and it was...