http://www.amazon.in/gp/pantry/info/Samples
How to avail the offer? (Pick up to 3 samples free on all Pantry orders more than Rs. 500)
Step 1: Build your Amazon Pantry cart with a minimum value of Rs. 500 with items other than the samples listed below.
Step 2: Add up to 3 samples to your cart from the items shown below
Step 3: When you are done shopping, proceed to checkout. Your cart value will temporarily show an increase when you add samples. In the last stage of checkout, the promotion will be applied to your order total and you will receive the selected sample(s) free of charge.
If you checkout with more than 3 samples in your cart, only the three lowest priced items will be free.