One Night At The Call Centre by Chetan Bhagat

...pitch-perfect... keenly focused on nuances and detail ... one night @ the call center has struck a chord with India`s young...` In the winter of 2004, a winter met a young girl on an overnight train journey. To pass the time, she offered to tell him a story. However, she had one condition that he make it into his second book. He hesitated, but asked what the story was about. The girl said the story was about six people working in a call center, set in one night. She said it was the night they had got a phone call. That phone call was from God.