One Night @ the Call Center is a novel written by Chetan Bhagat, first published in 2005. The novel revolves around a group of six call center employees working at a call center in Gurgaon, Haryana, India. The themes involve the anxieties and insecurities of the young Indian middle class, such as career, inadequacy, marriage, and family conflicts. The book was the second best-selling novel from the author after Five Point Someone.