The maker of Bipasha Basu starrer horror flick Alone have released a new romantic number from the film Katra.

The song has Bipasha Basu and Karan Singh Grover shedding all their inhibitions to shower love on each other under a tree, atop a car and in the water. The actors' hot chemistry is sure to create quite a stir in B-town, specifically after rumours are abuzz with their off-screen romance.

The intimate and bold scenes between the two in the movie are the high points of the film. Bipasha Basu has in fact claimed that Alone is her boldest film ever. "It is going to be my boldest film that I have ever done till now," Bipasha said recently.

Bipasha and Karan Singh Grover's steamy act has already generated a lot of curiosity about the film, trailer of which has already crossed the 3 million mark on YouTube.

Alone film centers around conjoined twins Anjana and Sanjana, played by Basu. The twins get surgically separated at an early age, and only one of them survived. The dead twin sister comes back to haunt the surviving one.