Sultan: The Saviour

Raja kills Ujan after Ujan captures him during his investigation into the syndicate's arms and drugs smuggling operation. Raja escapes and retaliates by killing Ujan and his men. Later, when Lama arrives in Kolkata to investigate the murder and traces Raja's mobile signal to a hidden tower, Raja ambushes and kills Lama along with his entire attack squad. This brutal escalation signals Raja's deep commitment to dismantling the crime syndicate and avenging Disha's family.

Earlier, a rival warns Ronnie that a good man will come to take him down, foreshadowing Raja's violent rampage against the syndicate.

Raja reveals Disha is not his biological sister when Alia tries to stop the marriage between Disha and Raja's boss. This revelation fundamentally changes the personal dynamics around him, as it clears the way for Disha to potentially marry Alia's brother, and it also explains why Raja feels free to pursue a deeper relationship with Disha without the constraint of their claimed sibling bond.

The backstory shows Disha lied to authorities presenting Sultan as her brother to get him medical treatment after he was stabbed, establishing the fake sibling relationship.

A year before the main story, Raja was known as Sultan, a terrifying criminal-mercenary who was arrested but freed when he saved the police from a rival gang in exchange for money. After being stabbed by enemies over business losses and being saved by Disha, Sultan transitions to using the name Raja and transforms his identity, eventually becoming a gentle, kind-hearted man who settles in Kolkata.

The opening scene mentions the prophecy that someone as ruthless as Ronnie could stand a chance, hinting at Sultan's violent past.

After Raja (as Sultan) was stabbed by enemies over business losses, Disha found him and got him admitted to a hospital. She lied to the authorities, presenting Sultan as her brother to secure him medical treatment. This act of compassion established the bond between them and motivated Raja to later protect Disha and her family.

When developers threaten Disha's family to push them out for a residential complex, Disha and her blind father hire Raja for protection. Raja initially accepts their money but betrays them by failing to protect them when the syndicate comes. The family departs after accepting a different arrangement, but this betrayal haunts Raja and becomes a turning point when the syndicate later kills Disha's parents and leaves her gravely injured.

After returning to India to investigate his brothers' murders, Ronnie uses an injured victim of Raja's assault to track down the killer. He hires Disha to sketch a forensic portrait of the murderer, not knowing her connection to Raja. When Ronnie instructs Disha to call her "brother," he unknowingly pulls Raja back into danger, as Disha's "brother" is actually the killer Ronnie is hunting.

Disha is abducted by Ronnie, but Raja pursues and rescues her. Earlier in the story, Disha was injured when the syndicate killed her parents during a trafficking rescue operation, and she lost her memory. The film ends with Raja rescuing her from Ronnie and fulfilling his long-standing vow to protect her and dismantle the crime syndicate.

The timeline notes that Disha loses her memory after being injured when her parents are killed, making her vulnerable to Ronnie's manipulation.

Alia follows Raja and witnesses the brutal trail of violence he leaves behind while killing Ujan and Lama. Horrified by his actions, she attempts to stop the arranged marriage between her sister and Raja, seeking to protect her family from his violent world. However, Raja's revelation that Disha is not his sister changes the situation entirely.

During the opening police raid on Ronnie, a rival warns that a good man will come to take Ronnie down. Ronnie counters that only someone as ruthless as him could stand a chance. This prophecy refers to Raja, who transforms from the mercenary Sultan into a man driven by justice and revenge to dismantle the criminal syndicate that destroyed Disha's family.

The prophecy directly foreshadows Raja's eventual role as the one who brings down Ronnie and his brothers.

Raja answers Ronnie's summons by taking one of Ronnie's aide's sons hostage to secure Disha's freedom. When Ronnie abducts Disha anyway, Raja engages in a climactic pursuit. He reveals controlled, measured violence, kills Ronnie, and rescues Disha, finally fulfilling the vow he made long before to avenge her parents and end the crime syndicate.

When Raja arrives in Kolkata with his gentle nature, he helps reform the local hooligan Kolkata Kaali, who becomes an ally. Kaali helps them find a new house in the neighborhood and supports Raja as he settles into the city, showing Raja's ability to positively influence others despite the criminal underworld around him.

Raja helps rescue Disha and 99 other girls from a trafficking ring led by Ronnie. During this operation, Disha's parents are killed and Disha herself is severely injured, losing her memory. This traumatic event motivates Raja to vow to kill Ronnie and protect Disha, setting up the main revenge plot.