most of the urls not crawled and indexed by Google any suggestion?

Please provide your website URL.

If you're having trouble getting your URLs indexed by Google, try submitting them to the Google Search Console by URL Inspect. Also, make sure that your website is properly linked and optimized for search engines. Finally, be sure to regularly check the status of your URLs in the Search Console to make sure they are being crawled and indexed.

You need to make sure that you have not put a no-index tag on these pages and also check whether you have not put a no-index tag in robots.txt.