Languages emerge under social needs. In multilingual societies, people exchange the words of different languages for communication. In this way, the words of a language enter into other language. It not only creates lingual harmony among the members of the society, but it also extends the sphere of language with the loan words. When the words of a language enter into the other language under political, social, economic and cultural needs, they are called borrowed or loan words. The domain of Urdu extended as a result of addition of words from other languages. The purpose of this article is to throw light on the economic, social and cultural causes and motives of the loan words from other languages in general and English language in particular.