Guwahati, India, March 18, 2007 - Guwahati, the capital city of the state of Assam is heralded as the gateway to the northeastern states of the country. Guwahati has been the service centre for the oil industry and tea plantations and home to important tea auctions. Being the economic hub of the region, the city is witnessing considerable migration of population from within the state as also from the neighbouring states. Within the span of a decade, the city has seen a considerable population growth of over 40%. This extensive population growth has been responsible for bringing upon a number of changes in the real estate market in Guwahati says leading global property consultancy firm Knight Frank.