I wish to personally thank my teams, seniors, and managers throughout my career who always trusted me with critical responsibilities during both tough and not-so-tough times. Their belief and support has helped me learn the fine details of the otherwise complicated process flows and service architectures. The on-the-job experience has also helped me relate with practical challenges and contributed in making this book more realistic and closer to the people on the ground.

I would also like to thank my wife and two-year-old son, who had to cope with my diverted attention and sacrificed late nights and weekends. I am keeping this short, to make it up to them.