Chetan Bhagat is very over rated writer. His stories are only made to attract college students. he writes anything to attract college community. His work on half girlfriend is totally illogical.
There is no connectivity between chapters of the books. The book deals with the life of 2 college students. His all the books make no sense or make the reader to read till end. His only aim remains to attract young generation.
Majority of people like his work and some of the bollywood movies are also made on his books but I personally do not like his content and way of expressing especially in Half Girlfriend.