In today’s life Social Media plays a very significant role in every activities of the people even it has a huge contribution in making of buying decisions by consumers. At present days there are various online networking sites which have a great influence on consumer buying behavior. Social websites like Facebook, Whatsapp, Twitter, Instagram, YouTube etc plays a major role and it is having many features which can affect and attract many numbers of social media users. This paper will focused on how the consumers use social media in the stages of decision making process and the Social Media Factors That Influence Consumer Buying Behavior that influence their behavior. A survey of 100 consumers selected randomly in the east siang district of Arunachal Pradesh was conducted, to find out to what extent they are impacted by the use of social media, and what role it plays in their decision making process. Around 66% of the respondents reported that they had paid attention on the advertisements presence in social media platform, and 69% of the respondents believe that Social Media influence their buying decisions. The implication of these findings suggests in what segment businesses in east siang district of Arunachal Pradesh should focus their market research and marketing strategy.

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Keywords: Social Media, Consumer Behavior, Decision Making Process, Social Media Factors