Rana, 26, who was the runner-up on Colors' "Bigg Boss 3", will be the brand ambassador for 'Save the Tiger and Leopard' campaign in India, OIPA officials said.
The Mr. India 2008 title winner is very excited about the campaign.
"I feel honoured to serve these big cats and all other animals. My motto is - live and let live. I appeal to the public to do their fundamental duty in saving these animals as per rules prescribed by the constitution of India, " Rana said.