Edited sentence: A clear representation of modern scientific, linguistic as well as lexicographic approach can be seen in his writings.Abul Lais Siddiqui, a great linguist and lexicographer of the twentieth century.According to Muhammad Usman Butt:''Rauf Parekh is an eminent Urdu linguist, lexicographer, researcher and columnist of Pakistan.An article having title ''Linguistic Contributions of Rauf Parekh: 21st Century's Context'' was written by Muhammad Usman Butt, which critically analyzed Rauf Parekh's linguistic as well as lexicographic contributions in the field of Urdu.He is an acclaimed pioneer in the field of Urdu slang dictionary as he developed First Urdu Slang Dictionary in 2006.His major linguistic contributions reflect the history, principles, methods and debates with special reference to Urdu lexicography.I call him a true successor of Dr.Ilm-i-lughat, Usool-i-lughat aur lughaat, Lughvi Mubahis, Lisaniyati Mubahis and Lisaniyat Kay Bunyadi Mubahis are some of his famous books on current debates in linguistics and lexicography.Parekh’s work in the discipline of Urdu linguistics as being a renowned linguist and lexicographer in twenty first century's context.This article deals with two vital dimensions of Mr.Urdu Lughat (Tareekhi Usool Par) Volume 19, 20 and 21 has been issued under his editorship from Urdu Lughat Board, Karachi