DERGAON - The flow of tourists to Kaziranga National Park (KNP), a World Heritage Site, has been increasing every year. The revenue earned from the tourists in the last financial year has also registered an increase. A sum of Rs 1,12,20,698 has been collected in 2008-2009 as revenue against an amount of Rs 87,34,185 collected in 2007-2008. The total increase has been to the tune of Rs 24,86,513.