Sri Lanka, July 24 -- Britain and India will sign a landmark free trade agreement on Thursday during a visit by Indian Prime Minister Narendra Modi, sealing a deal to cut tariffs on goods from textiles to whisky and cars and allow more market access for businesses.

The two countries concluded talks on the long-coveted free trade pact in May after three years of stop-start negotiations, with both sides hastening efforts to clinch a deal in the shadow of tariff turmoil sparked by U.S. President Donald Trump.

The agreement between the world's fifth and sixth largest economies aims to increase bilateral trade by a further 25.5 billion pounds ($34 billion) by 2040.

It will take effect after the British parliament and India's federal cabinet...