I am a long time user of mouthshut and I have earned 5000rs till now with great ease.
Mouthshut is a platform where you can write revies and earn money.Initially you get rewards for your money in the form of MS point ie. 20MS point for positive review and 40MS point for negative review.Then at the end of every month, your MS points are converted into cash and is transferred to your bank account.
You just need to approve your kvc and earn money by writing reviews.
A M2M message facility is also available where you can text to any member of mouthshut for free.you are not charged any sort of money for that nor you have to give any MS points.
So if you are new in mouthshut, just approve your kvc and keep writing the reviews and you will get your reward in the form of money.