When man moved from country to country, he transformed the entire profile of the countries and changed the racial, religious and linguistic compositions of such locations. Apart from migration, war or religious undertakings, another category of travellers, namely traders, gained importance in due course. The Industrial Revolution brought about far-reaching changes in the socio-economic set-up. It resulted in a large-scale migration of people to industrial centres and urban society eventually

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... eloped. The newly-emerged urban society which was comparatively more prosperous and carefree duly encouraged the development of tourism. The investigator has made a study about the purposes for which tourists came here under distribution by tourists of foreign nationalities and the Indian tourists. Development of tourism is inevitably followed by externalities, both positive and negative. Environment pollution is one of the major negative externalities. The quality of water, air and the amount and diversity of vegetation and wild life have yet another type of influence. Eco-tourism largely depends on the existence of clean environment. The present study has made an attempt to show how far the natural environment is clean from the perspective of tourists.