My website redirects from organic search

All my website product urls redirect from organic search to my home page.
Here is my issue :
For eg ., I have a url named xyz.com/product/product-id.html
when I searched this url on google.com it redirects to my home page xyz.com
Can I know how to fix this issue, Most of my urls redirect like this to home page.
thanks in advance for your replies.

See original post by Database1