Saathiya is a production which involves the biggest names in Bollywood. Produced by Bobby Bedi on a Mani Ratnam creation, Directed by Shaad Ali and Presented by Yashraj Films. It has music by none other than A R Rahman and lyrics by Gulzar. Saathiya is basically a remake of Mani Ratnam's original 'Alaipayuthey' in Tamil. Madhavan and Shalini played the lead in the original as against the current Bollywod heart throb Vivek Oberoi and Rani Mukherjee in this Hindi version. Yashraj's favourite Shahrukh is also playing a part in the Saathiya for which Mani Ratnam had his favourite Arvind Swami doing the job.

Saathiya is a story of two lovers who had to face problem after getting married. Suhani Sharma is a young medical practitioner, played by Rani Mukherjee. Vivek Oberoi plays Aditya Sehgal. Suhani's eyes stop at Aditya every time she boards the train as a routine. Trying very hard to resist, she develops feeling for Aditya. Though for Suhani 'Love is for people who had nothing to do'. The duo run away and get married. But the path of their love life is not that smooth. A tragic event separates the lovebirds. The incident proves to be a turning point in their lives.

Aditya leaves no stone unturned to know the whereabouts of her beloved. He calls her sister, friends, even the hospital, but in vain.

As for Suhani, for whom, people thought she had a stone heart. She had a lot to do in her life, pediatrics, house surgery, catching trains… But she falls in love; maybe because of the train she took. She saw him laugh loud, the way he looked, the mischievous grin, the jokes et al… Even she did not know until she got separated that she loved him so much that she can't live without him

Finally Aditya gets going to find his beloved, saathiya, but has his saathiya found someone else?