Hi Bhavana!

Your question is incomplete as you have not mentioned the name of exam or the organization for which you applied.

But in general, if you go for any interview either offline or online, the authorities ask you to fill up your contact details such as email Id , phone number etc. so as to reach out to you. And you must have filled these details, if you get selected you will definitely receive an email or a phone call.

Or if you are worried about the same, please contact the authorities to clear your doubt.

Thankyou!