I am trying to register in COAP 2018 but it says invalid registration number.
Yes, even I faced the same problem. I kept on trying daily. Finally after few days I was able to register and that error was gone. So, try daily.
Email:coap@iitm.ac.in
Telephone:044-22578200
Help-Desk Timings:9:30am1:00pmand2:00pm5:30pm(MondayFriday)
done everything.. yet it says invalid
GATE Registration number(s)
GATE score(s)
Date of birth
A valid and active Email ID
Active Mobile number
Thank you:)
COAP 2018 registration will start from May 16,2018. For more details check the link below.
https://www.google.co.in/amp/s/engineering.careers360.com/articles/gate-coap%3famp