There are many theories on the origin of Urdu language. Most of the linguists disagree to each other on the topic. Dr. Suhail Bukhari is one of the widely recognised Urdu linguists. He is greatly respected in Urdu world for his rendering and introducing new trend in Urdu linguistics. He also propounded a theory on the origin of Urdu. Though his theory could not get recognition rather proved to be a controversial yet it created ripples in the concerned circles. Ironically, date of birth of such a reputed scholar has yet not been determined. This article tries to determine his date of birth in light of his documents, educational certificates, statements and calendar.