They claim they buy back the book at 60% of the purchased price. This will not happen. They behave rudely while returning and bargain will be worse than the road side guys. I was supposed to get 280 Rs for my book as promised at the time of buying. He offered me 150Rs and behaved offensively when asked for a reason. I could sell the same book to a road side vendor for 200Rs. My suggestion - Never go!