Dear Md. Mohayminul Islam, I think that your gmail address should work. For more information please check out the previous thread on RG which is cited below. Good luck!

https://www.researchgate.net/post/can_i_create_Google_Scholar_account_without_an_institutional_mail_ID

Dear Md. Mohayminul Islam, using your institutional address is certainly better. After all, it is the purpose of platforms like RG and Google Scholar to showcase your scientific work to the public and the scientific community.

Really, not only google scholar but all of academic platforms and activities.

Thank you all for valuable information

Dear @Emad Kamil Hussein, thank you for your valuable information.

@Frank T. Edelmann

Yes. You are right but I don't have one right now.

Hope I will get one soon.

Thank you.

@Isaac Dinaharan

If it requires an institutional email to make profile visible then I'll sign up with institutional email once I have one.

Thank you very much for this information.

Md. Mohayminul Islam In any case your institution should provide you with an official e-mail address. All the best!

Yes. that's right mr. @Frank T. Edelmann