Sooryavansham is a 1999 Bollywood movie starring Amitabh Bachchan in a dual role, Soundarya, Rachana Banerjee, Anupam Kher and Kader Khan. Although the film was a box office flop critics hailed Amitabh Bachchans performance as his best ever since his comeback in 1997.[http://in.rediff.com/movies/1999/may/22soo.htm] It is the Hindi remake of the Tamil film Suryavamsam, starring Sarath Kumar and Devayani.
For generations the Sooryavansh family has ruled the village communities and its people justly and fairly. Current generation is headed by Thakur Bhanupratap Singh [Amitabh Bachchan] who is feared and respected in the village. He has 3 sons; the youngest named Heera [Amitabh in a dual role] is treated like a servant because he is the most illiterate of the family, and he will not have anything to do with him.
Heera is an obedient son and always respectful of his father despite his fathers indifference. His father is enraged when Heera proposes to marry his childhood sweetheart, Gauri [Rachana Banerjee]; and even more angered when Heera backs down promising never to marry again. Unknown to Thakur, Gauri refuses to marry an illiterate and makes Heera promise that he will not marry her.
At this time, Radha [Soundarya] enters his life; understanding his gentle and kind manner, she loves and proposes to marry him. She encourages Heera to live independently; and to help set up his own business. By now, Heera is completely disowned by his father Thakur for breaking his promise of lifelong bachelorhood.
Heera and Radha leave the village to live in their own home and Heera becomes a successful businessman, and Radha an important government officer. Soon, they are blessed with a son. Heera successfully fulfills what was once his fathers dream, a charitable hospital for the poor.
Thakur comes to know of his grandchild, and meets him secretly without anyone knowing. One day, he is rushed to hospital, apparently poisoned by food sent to him by Heera, and Heera becomes the prime suspect of the attempted murder.
In the end, it is revealed that the person responsible was Thakurs arch nemesis, Khewara Thakur. Khewara Thakur and Bhanupratap have a face-off in front of the hospital with Heera helping to eliminate the enemy.
In the movie actress Rekha has given her voice for Radha and the mother of Heera. This film was the remake of a Tamil film with Sarath Kumar in the place of Amitabh Bachchan. & remake of a Telugu film with Venkatesh in the place of Amitabh Bachchan
Source : Sooryavansham Wiki Page