2.2. Field study
Case study method of PRA (Participatory Rural Appraisal) was used for field research following an anthropological approach. Four case studies were conducted in four villages (Samser Nagar, Jemspur, Bagulakhali and Moukhali). Data were collected from villagers through listing, topical interview, oral trend and ranking methods of PRA. In order to get reliable and valid data, personal observation and key-informant discussion were made as and when required after obtaining a piece of information from a villager or group of villagers.