Hi @TanulBhasin-0866
Promo VM that you already deployed will remain available. You will find confirmation of this information here:
Source:
FAQ at the end of the article: https://azure.microsoft.com/en-us/pricing/details/virtual-machines/windows/
--I hope this helps. Please do not forget to "Accept the answer" and "Up-Vote" the answer or message(s) that helped you so that it can help others in the community looking for help on similar topics
Regards,
Didier3001