@Prabhat Vaish For our customers with Developer support plan we have introduced a new experience where you get business hours access to Support Engineers on Microsoft Q&A for prioritized responses, as the first line of support.
Additionally, if you have issues pertaining to Azure billing or subscription management, you can always create a support request though the Azure Portal or by following this link.
We would be more than happy to assist you with any technical questions you have here on Q&A. Any time you post a new thread; you will receive a response within 8 business hours (see here for more details on the SLA and subscription benefits).
https://learn.microsoft.com/en-us/answers/support/qna-faq#priority-community-support--pcs