© PA Images
The actress recently said that she shared "good chemistry" with her Singularity co-star.
Basu plays a she-warrior called Tulaja who captures the romantic interest of Hartnett's British captain in the period film.
A source told Mid Day: "Josh has been in a very public relationship with Sophia [Lie]. Why would he want to hook up with Bipasha when he has someone else in his life? They are merely good friends."
The star has recently broken up with long-term boyfriend John Abraham and has since been romantically linked to Dum Maro Dum co-star Rana Daggubati.
