"Bagh-o-Bahar" by Mir Amman Dehli and "Aab-e-Hayat" by Mohammad Hussain Azad are considered two the best books of Urdu Literature. Both books are admired due to their unique and ornate style of writing Aab-e-Hayat is the beatiful amalgam of informations of tazkaras and unsight of criticisms. Inspite of various merits of this book there are some demerits as well. Hafiz Mehmood shirani and Qazi Abdul Wadood are harsh critics of this book. While Masood Hassan Rizvi Adeeb seems to be advocate Azad. In this article different criticisms of Aab-e-Hayat has been viewed and analysed the authenticity of this book."