You can earn good money here provided you contribute best articles concerning this state in your own words in respective section of resources. If it is approved you will get good cash credit.
If the contribution from your side is regular the income will increase manifold.
Since less members are here you can excel very well here.
You may participate in Contests (currently Bidhan Sabha election 2011 contest is going on).
For earning frequently you have to post content (article, business) here on regular basis. Post any information relating to West Bengal; it will give you more cash. Also there are other contest and cash prizes for you. Keep eye on forum for new contest announcements.
Do not think of earning. Just post quality works and forget it.
The result will be good if you do work good.
Post as much info on Bengal as possible, be it resource, business etc.
Do not look upon your point table frequently because it will divert you from reaching your goal. Post quality work for 2-3 months regularly and see the result.