UPDATE: To sweeten the deal, Samsung just dropped the prices of Galaxy Ace Duos, Galaxy S Duos and Galaxy S III.
Bought Galaxy S III, Galaxy S Duos or Galaxy Ace Duos on or after December 10 in India? If you did, you’re eligible for some freebies from Samsung worth up to Rs. 9,899. All you need to do is input the IMEI number, mobile number and the email on the source link below and receive a microSD card (32GB for Galaxy S III, 16GB for Galaxy S Duos and 8GB for Galaxy Ace Duos) along with an ‘Entertainment Package’ that gives up to 100 hours of live TV channels, 200 movies and 2.5 lakh songs and 3GB of data from a service provider.
This is a limited time offer valid up to January 10, 2013.Source