What is the procedure to cancellation a demand draft?

A Demand Draft can be cancelled by the person who took it provided it has not yet been encashed. You need to visit the bank branch where you took the draft and submit a request in writing, asking them to cancel the draft and refund the money. The bank will accept the request if the draft isn't encashed yet and then cancel the draft and refund the money. The bank may or may not charge you a fee for doing so