Guwahati is the major city of assam.i have been staying here for last 4 years.but I had never seen this city without dirt.this city is very dirty and the people are not at all hygienic .the city buses running through the roads of guwahati are in large numbers.but people from the buses spit here and thdre on the roads .people walking on the roads also spit on them and throw garbage anywhere as they wish.this city is very highly populated and pollution is also vry high here.dont ever visit this place.