the 3 mistakes of my life is much better than the other novels by Chetan Bhagat. Really, I was surprised to see Bhagat talk about 'real' things. Anyways the prologue says that some of the events that occur in the story is real, it happened in somebody's life. So it is isn't Bhagat's entirely so as to say.
Yes, he has sex and frivolity thrown in. He hasn't his former self totally. There is some amount of no-sense. One question. Will Bhagat's next novel also contain amount of sensibilty or will it be meaningless? Hope he improves.