Hi @sunil kumar,
We understand you have questions about the Developer support plan and how to engage with Microsoft Support Engineers to receive answers to your technical questions.
Microsoft Q&A is our first party question and answer platform where enthusiasts, MVPs, and other community experts can engage. On February 12th, the developer support plan that you have purchased also ensures a new experience where you receive business hours access to Support Engineers on Microsoft Q&A with prioritized responses, as the first line of support.
We would be more than happy to assist you with any technical questions you have here on Q&A. See here for more details on the SLA and subscription benefits). Please do not forget to "Accept the answer” and “upvote it” wherever the information provided helps you, this can be beneficial to other community members.it would be greatly appreciated and helpful to others.