"Awarded to police forces for service in harsh enviormental conditions, or conditions of other special difficulty. members must complete one years service in areas of hardship after 1 january 1959. These medals are not officially manufactured and issued, but are instead made locally by independant manufactures"
The above information was taken from "Medals and Decorations of Independant India" by Ed Haynes and Rana Chhina
I have started to see if I can find all 16 medals that are known of
First off is the Gujarat clasp, this is a court mounted version attached by velcro