Hindustan Ki Kasam
A mother gives birth to twins. Unfortunately, they are separated. One of the children ends up in neighbouring Pakistan and grows up a devout Muslim named Tauheed, while the other grows up as a Hindu named Ajay. With the on-going rivalry and hatred between the two countries, both find themselves on the opposite side, and must battle each other. The only way they can unite is by saving the life of the Pakistani Prime Minister, who himself has become the target of terrorists.
Starring Amitabh Bachchan, Ajay Devgn, Sushmita Sen, Manisha Koirala, Farida Jalal, Prem Chopra, Shakti Kapoor, Kader Khan, Gulshan Grover, Navin Nischol
Watch "Hindustan Ki Kasam" from streaming services Amazon Prime, Amazon released in 1999. It's a drama and action & adventure movie, and has a rating of 3.5 out of 10 from Imdb which is fairly low for this kind of movie.