The best Nirupa Roy’s thriller movies

Indian Air Force pilot Bhagat lives with his wife, Raksha and a young son. While going to the bank one day, the family find that the bank is being held up. The bank-robbers panic at the arrival of the police, and fire randomly, killing Raksha instantly. Bhagat witnesses this horrific spectacle and is unable to do anything to save his wife. The robbers were masked, but one of them had a tear in his shoe and another was wearing a locket, very similar to the one worn by his wife. Bhagat's inquiries take him to the northernmost hilly regions of India, where he must confront the past, as well as seek out the elusive killers and bring them to justice, not knowing that in so doing he will be endangering the life of his son.

Childless Malti is married to a honest man, Kailash Nath, who one day brings home a newborn baby boy and asks her to take care of him. Malti names the boy Ashok, and brings him up as her very own. Thereafter she gives birth to two boys, Amar and Anand. When Kailash testifies against dreaded bandit & devil worshiper, Jabbar Singh, he is threatened with death. Jabbar is sentenced to be hanged, but before that could happen he is killed. Jabbar's son, Sheroo, avenges his father's death by killing Kailash. Sheroo is arrested by Kailash's friend, Inspector Om, and sentenced to 20 years. A dying Kailash informs Malti that Ashok is Devki's, his first wife's son, and makes her promise that she wil continue to love Ashok as her own, which she does, and Kailash passes away. When she returns home she finds out that Amar is missing, possibly drowned. She blames this on Ashok and starts hating him. Sheroo escapes from prison, abducts Inspector Om and holds him prisoner, whipping him regularly.

Singh is a farmer and lives a poor lifestyle along with his wife, and two sons, Ram and Laksman. The region is drought stricken, while in contrast there is plenty of water being pumped to bath the dogs of Thakur Vikram Singh. When Ram decides to divert some water for their parched fields, Vikram kills his father. An enraged Ram goes to avenge his death, manages to kill Vikram's brother, but is seriously injured, loses his memory and ends up with a gang of bandits and is renamed Thanedar Singh as he was dressed in the clothes of a police inspector. Lakshman gets separated from his mother and is found near a river bank by Police Commissioner Bhalla, who adopts him. Years later the two brothers are fated to meet again albeit as strangers and mortal enemies as Lakshman is a incognito CBI Officer, while Ram is dreaded bandit Thanedar Singh who is unable to recall his childhood, and loses control whenever he hears the sound of a water-pump.