This is not a love story. It has a different plot. It has the following characters. Keshav who works in a JEE tuition centre. He is in love with Zara his colleague. But she has to break up with him.
The reason being that Zara is a Muslim and Keshav Hindu parents do not like this. Zara falls in love with someone else.
One day Keshav gets drunk. He does not message Zara on her birthday. Zara calls him to remind him. Keshava on the spur of moment decides to view her in her Hostel. The room is 105. When Keshav enters the room he finds Zara dead.
Need I tell you more about the story plot. Keshava realizes that this is the worst mistake of his life. Read the book to see what happens to Keshav.