 The Najafgarh Drain flows through the western edge at its southern part to a part away up to almost a kilometer away in the northern part.Nearby residential areas of Paschim Vihar include Punjabi Bagh, Madipur, Paschim Puri, Paschim Vihar Extension, Punjabi Bagh Extension, Bhera Enclave, Sunder Vihar, Meera Bagh, Jwalapuri, Guru Harkishan Nagar, Tilak Nagar, Vikaspuri, Janakpuri, Keshopur, Peeragarhi, Nangloi, Udyog Nagar, Pitampura and Rohini.The postal code of Paschim Vihar on the eastern side of Outer Ring Road is 110063 and of that on the western side is 110087 (Sunder Vihar Post Office).