This is the research product from the ethnographic study of the Tharu community resident from flat land of Nepal. This book is useful to study of the climate change its role to change the knowledge system and cultural practices in the indigenous community of Nepal. The Ethnographic study in anthropology of the climate change, knowledge system and cultural practices in indigenous people of Nepal add one of the important knowledge product to the academia and intellectual. This knowledge product open the door for further research and study in indigenous communities climate change, change in knowledge system and cultural practices.