Facebook removes parameters from url that I used to send using facebook send button.
I have tested my url http://www.logixsolution.info/grouppay/gift/?og_id=1 in http://developers.facebook.com/tools/debug there also this same problem exists. I have checked with encoded url, but still the problem exists.
Check attached screenshot of debug result
Look at the bottom of the debug result screenshot you added - it's showing that when accessing http://www.logixsolution.info/grouppay/gift?og_id=1
there was
http://www.logixsolution.info/grouppay/gift/?og_id=1
http://www.logixsolution.info/grouppay/gift/
- The final URL in the chain is http://www.logixsolution.info/grouppay/gift/
and this is the one the tags are read from
I tested manually and got this too:
<link rel='canonical' href='http://www.logixsolution.info/grouppay/gift/' />
Set the canonical URL either there or in the og:url
meta tag to be the URL you want the likes/comments/etc to be attributed to and the meta tags to be read from