Five point someone and One night@the callcenter are the famous novels of the upcoming author Chetan Bhagat.

Personally i believe, Five point Someone is better than the second book, one night@callcenter.
Five point Someone deals with the story of 3 friends, Hari, Alok and Ryan, studying in IIT, Delhi and their experiences, wat all happened in their life during the 4 years of engineering. How they flunked in studies, and came to the five-point grades, and finally how they come out, the mischievous things they do at iit, the love life of Hari and Neha covers up most of the story.The humor is really practical ones and you feel you can relate the incidents to some in your life. Then at the climax, you may seem some incidents which is really fictional, but you stil can enjoy it.
I would rate this book at 7 to 7.5 out of 10 and hence i went on to read his second book.
One night@ the call center, gave some insights into the work of the call center people, how they struggles to earn money. The difficulties they have to face, what all they have to face from the society for working in a call center, and in that night what all happened to them. The synopsis of the book says they gets a call from God! and yes, this part is really really fictional and unpractical, that we, atleast i couldn’t enjoy climax to the fullest. It leaves us in the middle, asking us, wat did u people expect more from a God’s call..it was just a like a granny story i felt.. Apart from that, it has the comedy as in the first book, but not as like with the college buddies. This book was concentrated on the working people, and hence was more serious kinda book. Actually saying you can consider it as a timepass book, but it gives the truth about how these agents are been tortured in offices, what value they ar given by the society, how they work additionally at night, other than the usual chores of the day.. you can say, the author came out of the iit life, and was trying to peek into the working people.. Overall i would give a rating of 5 to 6 only to this book..
Those who havent read these books, i would suggest the first book is good to read, but the second one, for people like me who read for fun, wont like it..