Dr. Najmul Islam was a reknowned researcher of Urdu language and literature. His essays in the dimention of principles of research are self-written, translated and extracted. After Allama Shibli Nomani and Dr. Ghulam Mustafa Khan, the name of Dr. Najamul Islam can be unhesitatingly taken in originating the principles of research from Quran and Hadith. He was the founder of introducing rasmiyat-e-tehqeeq in Pakistan. His work on the principles and procedure of tehqeeq-e-mansoobat is precedental. First time, he emphasized the use of scientific tools in Urdu literary research, especially on manuscripts. He exercised the rasmiyat of research journals, as an editor of Tehqeeq, departmental research journal of Sindh University, Jamshoro, later on recommended by HEC. He published sections of principles of research in Tehqeeq continuously. In this article brief analysis of all the work of Dr. Najmul Islam in relation to the prescribed dimention and its impact on Urdu literature is tried to be presented first time.