Chetan Bhagat fans are in for a treat this October! The author’s new novel, a love story- Half Girlfriend"," is due for release this October. The book is available for pre-orders and you can book your copy through the E-commerce website Flipkart. Bhagat, who is considered a bestseller in the Indian English writing scene, today took to twitter to announce the upcoming book along with a short video teaser. "Hi all! Happy to announce my next book titled “he wrote. He had even put up the first chapter for test reading on his site which crashed as there were many users who logged in to read the chapter. The chapter was again shared in his FaceBook page. So get your cards ready to book your copy of the “Half Girlfriend”…