Hello aspirant,
Hope you are doing great.
So, with regard to your question, you had mentioned that you are not receiving any OTP to your mobile numbers, then you can try with the Gmail Id instead. Even if you don't get it still then you can contact the authorities.
In your question you did not mention about the application or exam about which you are talking about, if you could mention, then I will be able to provide the contact number of those respective authorities.
Thank you.
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