London : A lobby of Indian businessmen and actors is mounting a legal challenge against Queen Elizabeth II demanding the return of the world famous Koh-i-noor diamond to India. The 105-carat stone, believed to have been mined in India 800 years ago, was presented to Queen Victoria and is now set in a crown belonging to the Queen’s mother on public display in the Tower of London David de Souza, co-founder of the Indian leisure group Titos, is helping fund the new legal action and has instructed British lawyers to begin the court proceedings. “The Koh-i-Noor is one of the many artefacts taken from India in dubious circumstances: Colonisation did not only rob our people of wealth, it destroyed the country’s psyche, too.’’ The legal action coincides with Prime Minister Narendra Modi’s visit to the UK.