Vidya Balan, who was admitted to Mumbai's Lilavati Hospital on Friday, has been advised complete rest after being released, according to reports coming in on Tuesday. She has lately been maintaining a tight schedule over her ambitious upcoming film, The Dirty Picture.

"Vidya's parents took her for a check-up because she had been complaining of dizziness and fatigue for quite a while. A series of tests were conducted, which revealed her haemoglobin count was below the acceptable level. The doctors advised her to check into a hospital and she was immediately put on drip," a source at the hospital said.

Industry insiders say Vidya has been excessively involved in The Dirty Picture, scheduled for release on December 2. She has had to travel in and out of Mumbai over the past couple of months, as most of the shooting of film has taken place in Hyderabad.

"The role in the film is her dream role and she is going all out to ensure she gives her best. She has almost been working non-stop over the past few weeks and this seems to have taken its toll," a source said, about Vidya's involvement with the film, that sees her portray the tragic life of eighties sex symbol Silk Smitha.

Reports coming in suggest Vidya was kept under observation at the Lilavati hospital for most of the weekend. "She was discharged early this week but the medical advice to her is complete rest for at least seven days," the source said. A seven-day rest could throw the last stint of shooting for The Dirty Picture into disarray. Plus, she has another film, Sujoy Ghosh's Kahaani, coming up in January, which could also be affected.

The makers of both the films have, however, said they will happily wait. Although shooting of about a week remains for The Dirty Picture, after which post-production follows, producer Ekta Kapoor and director Milan Luthria are confident the film will be ready on time for its December release.

Beyond the health problem, the 33-year-old actress has otherwise been enjoying a great stint in her career lately. Her last releases - Ishqiya , Paa and No One Killed Jessica - were back-to-back hits. The Dirty Picture and Kahaani, her next two films, have garnered ample hype. And she starts shooting for Sanjay Gupta's Shootout At Wadala soon.

Reports coming in suggest Vidya has also been offered Force 2 opposite John Abraham, with whom she reportedly shared warm vibes during the shoot of Salaam-e-Ishq. "Right now, Vidya is trying to quickly recuperate at home with her parents, family and friends, so that she is ready to wrap up the remaining portions of The Dirty Picture on time," the source said. But, industry watchers feel more than the shooting, the real grind will start once the promotional activities start. We all hope Vidya will be fit and fine by then.