During David Cameron's visit to India, the British Prime Minister clearly ruled out the calls related to the return of the famous Koh-i-Noor diamond, back to India. He insisted that if such demands were considered, it would straight away take the glitz associated with British Museums.

"If you say yes to one you suddenly find the British Museum would be empty", he posted. "I think I am afraid to say, to disappoint all your viewers, it is going to have to stay put".

The priceless rock, mined in India, was a vital part of the Crown Jewels for 150 years and was taken away by the East India Company in 1849 in a view to present it to Queen Victoria.

This longstanding demand for the 105-carat treasure has witnessed a huge debate among Indian politicians.

The rock last adorned late Queen Mother as it was placed at the top of her crown when her coffin lay in state following her demise in 2002.

Tushar Gandhi, the great grandson of independence leader Mahatma Gandhi, posted his view over the demand, saying that the treasure should be given back to the country as "atonement for the colonial past".