Actors Sidharth Malhotra and Janhvi Kapoor are all set to share the screen for the first time in the much-awaited romcom, Param Sundari. And in a major surprise for their fans, the teaser of the film was attached to the recently-released film, Bhool Chuk Maaf, in theatres, and it also got leaked online on Friday.Param Sundari is all set to get Sidharth and Janhvi back into the romcom space, as the last few films of both the actors saw them doing character-driven roles. The leaked teaser, which is now splashed all over social media, opens with Sidharth flaunting his six-pack abs on screen, and Janhvi captivating the audience with her kohl-rimmed eyes.While the teaser does not reveal much about the plot, it gives glimpses of Sidharth and Janhvi's chemistry, and while the former is seen sporting a boy-next-door look, the latter has picked up an out-and-out desi avatar.The teaser also hints that it won't be a smooth ride for the lovebirds and that their cross-culture love story will be met with several obstacles.Param Sundari tells the story of a North Indian man named Param, who falls in love with a South Indian woman named Sundari, set against the backwaters of Kerala.As soon as the leaked teaser went viral, netizens couldn't help but swoon over Sidharth's charming looks and Janhvi's beauty. Sonu Nigam's vocals in the background also caught the attention of netizens.Param Sundari is scheduled to released in theatres on July 25, and the makers are yet to officially release the teaser online.