The outbreak of the disease was first recorded on or after 5th Oct 2002 and study of the villages reveal that the outbreak first occurs from a person who has visited a nearby village where it was occurring. The person was detected with watery diarrhea. Interrogations were made from the Patients admitted in the Community health center. their relatives and house survey were also conducted in the affected villages to gather information about the sources of their water supply and also about the illness. Samples from different water sources of the village and also seawater were arranged from the neighborhood of the shore. The samples were sending to the National Institute of Cholera and Enteric Diseases in Kolkata for further study and confirmation. The study suggests that the people moving in between villages had played a role in the spread of the disease. The wells had concrete walls so that it can be used for drinking purpose but there may be the case of mix up of the surrounding shallow water through seepage. But there has been no concrete proof of how the organism spread. A possibility that has been identified is that the organism may have been introduced in the marine environment from the discharge of the ships that pass daily along the shore. The area where the ships enter and remained anchored was in Tapong where the first outbreak appears. The number of persons affected by waterborne disease increases from 10 people per month to 250 persons per month just before and after October 2002. The first person affected died of the disease. Eight more cases of cholera were reported from 5th Oct to 7th Oct and more 11 by 12th Oct but with the spread of the knowledge of early hospitalization, the fatality rate remains low.