The International borders have a mixed, region specific and town selective impact on the process of urbanization in the western part of Rajasthan. International border making is a politico-bureaucratic and a securitized exercise. This research paper is an attempt to discuss and analyze the geopolitical impact of the Radcliff line — The Indo-Pak border lying north-west of India, shared by two very important nations of the South Asia: India and Pakistan. It was formulated in the process of partition between the two nations on 17th August, 1947 determined by a British Government Commission Report usually referred to as The Radcliffe Line named after Sir Cyril Radcliffe. Being one of the most heavily militarized international borders of the world, it makes this entire region very contentious, sensitive and susceptible to infiltrations and illegal smuggling. Its a long boundary of around 1070 km running along Ganganagar, Bikaner, Jaisalmer and Barmer districts of our state Rajasthan. Investigations expose that the urban growth rate as a whole slackened after the emergence of the Indo-Pak border in 1947. The most damaging effect was noticed in the Punjab sector, which was the most developed as well as the most populous. Ironically, border was instrumental in stimulating urbanization in the under developed but strategically important sectors of Jammu and Kashmir. Research states, the impact of the border is critical up to 40 km, moderate between 40–100 kilometers and negligible beyond this distance usually.