sir i applied for iit bombay for m.tech on gate 2019.. i submitted old obc certificate. i want to submit new certificate..
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I happens with many candidate just be calm and wait for the notification to upload new documents on the website. If nothing works just go to IIT B on the day of counselling or interview and meet the registrar of the controller of examination office and tell him your problem. But there will be a notification about it on there website before last call so check there website daily and if possible send a mail on there mail id stating your problems.
Best of luck.
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