A Untold Name ...

2018 as the inspector reads the diary. Varun Kumar is shown as the owner of the Our Hand, a mobile telephone company. In the course of his business, Varun sends his men to meet Ishu, a struggling model, about putting up a billboard above her apartment. The owner of Ishu's advertising firm misinterprets this as a romantic advance, and in view of a possible lucrative, Our Hand ad campaign and other benefits encourage Ishu to accept the overture. Ishu thinks of this as an innocent prank that may fetch her better modelling work and decides to play out the charade as Varun's girlfriend. She gives an interview in a magazine citing Varun as her love interest. This irks Varun; as soon as Varun knows of this matter, he decides to confront Ishu but falls in love with her at first sight. Thus, he introduces himself as "Sethu". Eventually, both of them spend time together and gradually develop a liking towards each other. The diary ends with Varun proposing to Ishu and promising himself that he will reveal himself as Varun Kumar if she accepts.

Later...

Ishu had accepted Varun's proposal and ends abruptly. As inspector  investigates further and discovers that 

 

Ishu was travelling to Delhi for a modelling assignment by train when she came upon 30 innocent young Tamil girls being trafficked to Delhi. She saves the girls who name Mariano as the ringleader of the racket. Mariano kills two girls, who recognised him, and goes in search of Ishu

His goons break into her apartment and wait for her to return, upon which they give chase and subdue her. Varun arrives there to meet Ishu but notices the group of men grabbing her, and trying to rescue her. He overpowers them only to discover that Ishu had disappeared amidst the chaos. He makes it to her room, and upon opening the door, she slowly walks towards him, drenched in sweat. Her last word to him is " Go", a warning for him to leave, as Varun looks down to see she had been stabbed from behind. Varun is suddenly aware, but Mariano hits him over the head with an iron rod that disorients him and is struck again in the head again enough to bring him to the floor. A badly injured Varun's last vision was to witness Mariano brutally murder Ishu with the iron rod, much to his grief as he moans helplessly, despite already dying from the knife, and Mariano hitting him in the face with the same weapon again, before losing consciousness.

All through his love was pure but Ishu didn't know who is Varun Kumar and she died without knowing it