Characters:

 Ranbir Kapoor: Sidharth Mehra
That's me! Well, Sidharth Mehra really but everyone calls me Sid. I'm just a regular guy, I guess. I just finished college and have no idea what the heck I'm doing next. No one told me that I had to have a plan, so I never made one! If you ask me, the world would be a much better place if we all just slowed down and learnt to take it easy sometimes. That's kind of what I'm doing these days... just taking it easy... hanging with my buddies, watching TV, eating, sleeping, dreaming... that sort of thing, you know?

Konkona Sen Sharma: Aisha Bannerjee
God, there's so much to say about Aisha... She's new to Mumbai, and completely infatuated with the city. She left everyone and everything she knew in Kolkata to go after her dream of becoming a writer for this cool urban magazine called Mumbai Beat. She's creative, ambitious, focused, driven, brave... phew, basically everything I'm not!

Anupam Kher: Ram Mehra
Dad and I have nothing in common, really. He owns a company that manufactures bathroom fittings. Their speciality: these horrific gadgets called Flower Showers! They're exactly what they sound like-showers that look like flowers. I wish I was kidding, but I'm not. And now, he wants me to join the company! How am I going to get out of this one?

Supriya Pathak: Sarita
Mom has three obsessions: Watching TV serials, nagging me, and trying to learn English. I don't know which one bothers me more! But she's sweet, and always gives me money, even when dad tells her not to. And her Rajma Chawal is to die for!

Namit Das: Rishi
Rishi and I have been buddies since KG, and he hasn't changed one bit. He's always in love and always getting his heart broken. His current "true love" is Neha. They met on the first day of college, and have been obnoxiously stuck at the hip ever since. I don't get this 'love' business at all! Quite frankly, I feel like punching him in the face when he gets all mushy. We've had some great times together though.

Shikha Talsania: Laxmi
Laxmi is one of my best friends, though her best friend is food! I don't think I've ever seen her not eating. I swear! She's either munching on something, or talking about eating, or planning her next meal... how she manages to find time to study and top our class every year, I have no idea! 

Synopsis

This is the story of Sidharth Mehra (Ranbir Kapoor), a lazy, unmotivated slacker from Mumbai whose life undergoes a series of changes after taking his final year college exams. Sid's world is breezy, carefree, and without any true responsibilities. The most important elements in his life are his friends, his camera, his car, and his X-box 360.

Sid thrives around his two best friends, Rishi (Namit Das) and Laxmi (Shikha Talsania), very rarely communicates with his mother Sarita (Supriya Pathak) and takes his father Ram Mehra (Anupam Kher), and all his hard earned wealth for granted. Despite all these traits, Sid is an honest boy; sweet, funny, and above all, a good friend. Aisha Bannerjee (Konkona Sen Sharma), an aspiring writer from Calcutta, learns this soon enough when her path crosses with Sid's on her first day in Bombay, Ambitious, well-read, and driven, Aisha has come to Bombay to realize her dreams as a writer. Despite their contrasting personalities. Sid becomes Aisha's first friend in the city.

As Aisha sets up her life in Bombay, with the help of Sid and his gang, Sid allows for time to fly by over long drives, parties that stretch well into dawn, and endless hours doing absolutely nothing. But summers vary rarely dull these days and Sid's summer is no different. A series of circumstances and events compel him to take stock of his life and take a hard look at himself. Will he, at some point figure out what he's supposed to be doing with his life?