The 2001 movie, starring Priyanshu Chatterjee, Himanshu Malik, Sandali Sinha and Raqesh Vashisth, was a sleeper hit at the box office.
Sinha said producer Bhushan Kumar had also been coaxing him into making the sequel.
"The movie's fans keep telling me to make one more 'Tum Bin'. I have never had a story to take the film forward. But in the past six or seven years, the demand from my partner Bhushan and the audience grew," Sinha told PTI on the sidelines of IFFI.
The film will go on floors in February next year but no actor has been roped in yet.
The director said he also has a few films, which he wants to make as a producer, and work on them will also begin from next year.
"Next year I will be making a lot of films.