Hi Himanshu Gupta,
You lost points because this one of your previous document was rejected. http://scn.sap.com/docs/DOC-36325
The automatic deduction of points due to recalculation no longer exists with the new gamification platform, but the current issue is that negative point entries are not displayed in the point history. This is a known issue addressed in http://scn.sap.com/docs/DOC-40887, and we are working to have it fixed. Sorry for the confusion!
Regards,
Sean
