Hi Sachin,
If you have lost access to your phone and don't have any alternative means to receive the code, you can try the following steps:
Contact Microsoft support: You can contact Microsoft support and explain your situation. They may be able to help you reset your account and provide alternative methods of authentication.
Provide alternative email address: If you have a backup email address associated with your Azure account, you can provide it to Microsoft support to verify your identity and reset your account.
Provide identity verification documents: Microsoft may ask you to provide identity verification documents, such as a government-issued ID or passport, to prove your identity.
Enable multi-factor authentication (MFA) in the future: To avoid this situation in the future, you can enable MFA and set up alternative authentication methods, such as an authentication app or security key, to ensure that you always have a backup way to access your account.
I hope this helps. Good luck!