ABSTRACT: This research paper basically deals with Aadhar based Decentralized Voting System that means just by showing Aadhaar we can cast our vote. So this application makes things easy for voters, candidates and administration to participate or to conduct voting. Our system is highly secured as we have implemented blockchain in backend which helps everyone to keep track of malpractices happening in voting.In this proposed application we have used Aadhar number as unique identity which user can enter and if he is eligible ( above 18 years and citizen of India) than OTP will be generated which serves as a pin and after entering it user can use the voting system to cast his valuable vote.

| DOI: 10.17148/IARJSET.2021.81137