Legacy networks which were discovered in 1970’s suited better for olden day’s communication model where the network is host centric, but nowadays expectations from communication networks is changing and it is shifting from host centric to data centric. To suit recent expectations there is need of revolution in communication networks; Information Centric Network (ICN) is a new kind of network architecture evolving for future internet. This article introduces ICN and its prominent features and reviews the work done post architectural approaches in the areas of routing, transport and security specifically.