Hi Venu Yeduru
Welcome to Microsoft Q&A Forum, thank you for posting your query here!
It seems you are encountering a "429 Too Many Requests" error, which typically indicates that you have exceeded the rate limits set for your Azure OpenAI service. Since you have already submitted a request to increase your quota, it may take some time for the request to be processed and approved. As a remedial for rate limit, ensure that your application has retry logic in your code. You can also reduce max token and ask model to keep the answer size under 50-80 words
Kindly refer below link: billing-details
Thank You.