Space Applications Center under Indian Space Research Organisation @ Ahmedabad, Regional Remote Sensing Service Centers like Bangalore/Jodhpur , National Remote Sensing Agency @ Hyderabad-to name a few are some of the places which fit your requirements.
As suggested previously, ITC would be a good place - far cheaper than study in the US, and in an extremely international environment (we've had students in the past from some 170 countries, and staff from over 30 who have often lived and worked in non-Western countries). Strong focus on natural resource issues, see for example http://www.itc.nl/natural-resources