Group discussion is the discussion about any question. For participating in the group section you have follow the steos as follow.
In forum section, there is another sub-section Maharashtra spider categories in which there is option Group discussion section. Click on the Group discussion option, it will give you thee questions asked for discussion you can click any one of that and answer to participate in the discussion.
You can also start you own discussion by starting a new thread in forum and selecting a Maharashtra spider in that Group discussion.
" Life does not get better by chance, it gets better by change. "