Mumbai, Feb. 10 :    Mumbai, Feb. 10:  When Meghna Gulzar set out to make Filhaal, she hadn't thought she would strike a medical chord with her debut film. 'I never looked at the film from the medical viewpoint. I did it primarily because I wanted to do something different,' the young filmmaker said. But along the way, the film caught the imagination of doctors. Infertility specialists are wowing the film as loudly as the critics, but for a different reason. 'Filhaal has highlighted an issue we are desperately trying to put under the spotlight. And this is nothing but the emotional conflict between the donors and recipients of eggs needed to produce a test-tube baby,' Dr Hrishikesh Pai, an infertility specialist with Leelavati Hospital, said. The film revolves around surrogate motherhood, depicting emotional conflicts between close friends Sia and Rewa, played by Sushmita Sen and Tabu. A fertile-yet-unmarried Sia lends her womb to an infertile Rewa, agreeing to bear her married friend's child with implanted eggs. The result: a baby torn between the pulls of the biological and surrogate mothers. Filhaal focuses on the emotional tug-of-war between the women claiming rights to the child and the resultant tensions between their husband and boyfriend. The conflict - and the film - ends when Sia gives up claim to the child she gave birth to marry boyfriend Saahil, played by Palash Sen of Euphoria fame. As more and more childless women - especially between 40 and 60 - are seeking the solace of motherhood by using the in vitro fertilization or IVF method, doctors often find themselves caught in the centre of a parental dispute. Pai said women who volunteered their eggs had often ended up claiming the babies. 'It's an emotional issue. There are instances when even sisters who had helped their barren older sisters with eggs later claimed the children, complicating not just their lives, but doctors' as well.' Dr Mukesh Agarwal, who runs an IVF clinic, said the film would lend weight to the doctors' demand for a government regulation on anonymous donation of eggs, which he said was 'absolutely necessary' to avoid emotional conflicts. 'Once it is done, neither donors nor recipients of the eggs will know where the eggs went or where they came from.' The filmmaker, daughter of lyricist-director Gulzar and actress Rakhi, said she had tried to depict the inherent conflict in surrogate motherhood. At the same time, she stressed that it is not a film on surrogate motherhood alone. 'I also wanted to show how all the four main characters in the film reacted in a situation like this. I tried to show what they all went through because of a child born this way,' she said. The idea came to her in late 1998, when she saw her pregnant sister-in-law develop 'serious complications'. 'I had watched her very closely, but honestly, I had no idea medically of the emotional conflict a test-tube baby could cause. It was all in my imagination at that time,' she said. As the idea of a film germinated, she decided to research the subject. 'The first thing I did was to call up my gynaecologist and ask about the subject,' Meghna said. The doctor confirmed the would-be filmmaker's fears. In detail, she was told about the painful emotional conflict that surrogate motherhood at times caused between the donors and recipients of the eggs. Soon after, Bosky - as her parents call her- got down to penning the script.