Spread across Mumbai over a decade, the film is about the relationship between the quirky, rebellious Meeta (Parineeti Chopra) and the mischievous Nikhil (Sidharth Malhotra) struggling with their respective families to fit in. Nikhil bumps into Meeta on the occasion of her sister Deeksha's wedding while Meeta is on the run. He falls in love with Meeta's sister Karishma on the same day. The film jumps to the eve of Nikhil and Karishma's engagement. Karishma's wealthy father, Devesh Solanki, does not approve of Nikhil as he finds him to be a lackadaisical young man. On the day of his engagement, Nikhil promises Karishma that he will prove himself to be worthy of her within the next seven days. Nikhil is re-introduced to Meeta by Karishma and is instructed to put her up in a hotel. Nikhil recognizes Meeta. In an attempt to please Karishma he decides to keep Meeta in the flat above his own house, with his crazy extended family. During the course of Meeta's stay at Nikhil's house, they ... Written by Reliance Entertainment

The gang of five — Gopal, Madhav, Lucky, Laxman and Laxman, again! are orphans who have been raised in Seth Jamnadas' orphanage in Ooty. When they return to their orphanage to mourn the death of their mentor, they hear that an avaricious builder, Vasu Reddy and his associate, Nikhil have designs on the ashram and the adjoining plot owned by Colonel Chouhan. The jugadu gang decides to stall the builders. However, they realise that in their absence, some friendly ghosts too have started to reside in the area. Anna Mathew, who can talk to spirits, acts as the guide to the gang.

Karan and Charan are identical twin brothers but their personalities are polar opposites. Karan has grown up in London while Charan was raised in Punjab. Karan is street-smart, calculating and flamboyant while Charan is simple, idealistic and honest in his approach. Karan is in love with Sweety while Charan is in a relationship with Nafisa. Karan's family fixes Karan's wedding with Binkle, daughter of one of the wealthiest families in London. He convinces his family to fix the match with Charan instead. The respective families are happy with this development except Charan because he wants to marry Nafisa. Written by Anonymous

Sooraj (Sooraj Pancholi) is a gangster of Mumbai who meets Radha (Athiya Shetty). Radha is the daughter of the Chief of Police. One day, Sooraj runs with Radha, telling her that he got instructions from the police to take her away from city for some time. But later Radha gets to know that she is kidnapped by Sooraj. After a series of events, Sooraj leaves Radha. But by that time, they are already in love. Thereafter, comes the part where they have to face a lot of problems and overcome all hurdles to prove their love for each other.

Raftaar Singh (Akshay) spends his days whiling his time away dancing and jumping through fire hula-hoops at fairs in Bassi Pathana in Punjab. While his father (Yograj Singh) is tired of his ways, his mother (Rati Agnihotri) caters to his appetite with home-cooked jalebis, before the former asks Raftaar to choose a path for himself. Either get married to a certain Sweety, or move to Goa and work under his father's friend. Considering the first option unimaginable, Raftaar chooses the second.