"A lot has been said about Agent Vinod, but we are very much on track. Final touches are being given to the script and at the end of March we should have the film on the floors," Saif, 39, told IANS in an interview.

After Love Aaj Kal, this will be his second production. Agent Vinod will be directed by Sriram Raghavan.

"Meanwhile, I definitely want to work on Race 2. To do a romantic comedy is also something that stands high up in my list, but then I am just waiting for a great script to come my way," said Saif.

Taking a trip down memory lane, he said it was superhit Hum Tum that bailed him out during trying times.

"I would think that Hum Tum was a definite milestone film in my career. Yes, there was Kal Ho Na Ho which was a good success as well, but then I was a second lead there. Hum Tum was a solo hit and had the momentum going for me," said Saif.

"Soon followed Salaam Namaste, which further set the pace in my career. In the earlier years, Yeh Dillagi was definitely a landmark movie. Then came Main Khiladi Tu Anari, which again worked quite well for me," added Saif.

Success came to Saif after a lean patch where nothing seemed to be working for him. With many of his films belonging to diverse genres failing at the box office, Saif was pretty much looking at the bottom of the barrel.