Hi Tejas,
when ever you will take part in any discussion, if you will give reply that will suit to the person who have raised the question, the he will put your answer as Helpful or Correct, if your answer will get a helpful marked, you will get 5 points for that, if Correct then 10 points.
So as many discussion you will get involved, if get helpful or Correct mark, your point will get increased accordingly.
There are various forums in SCN in which you can take part, and can gain many poits as your answer will reflect accuracy to the person who have raised the question.