Candidates can upload their corrected/new/proper certificates on the candidate portal at The portal can be accessed from

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IIT Bombay Zone IIT Delhi Zone  IIT Guwahati Zone IIT Kanpur Zone IIT Kharagpur Zone IIT Madras Zone  IIT Roorkee Zone

Online Submission of Registration , Payment of Registration Fee and Printing of Registration Details Page for JEE (Advanced) 2018 is Over