In 2001, Bollywood saw one of its most contagious love stories, Rehnaa Hai Terre Dil Mein. It was the debut vehicle of South star R. Madhavan and Dia Mirza. 19 years have passed and the film enjoys a cult following due to the lead pair's chemistry and a haunting soundtrack.

Every year when the film turns a year older, or should we say younger, both the actors take to their social media accounts to celebrate the occasion with their fans. Now, they have reunited after 19 years for something more special and crucial. The world is about to celebrate Environment Day on June 5 and the actors could be seen discussing their love for animals and nature.