Application
You need to apply again with new contact number and email id, if you want to go for online to offline or offline to online payment option.
Yes, it will be considered.
If it is not done yet, then I would suggest you to fill a new application form with new contact number and email id. Good Luck!!!
Yes, you can rectify your mistake after 20th of Oct there should be no problem for the same. Good Luck!!!
You can upload the "Provisional Certificate Letter" given on their website.
I would say try to get it in black & white format to avoid all risks.
I would suggest you to change the system then try to get it done again. If still the same happens contact GATE Officials asap. Good Luck!!!
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