Indian Army said that since 2014, the year "Swachh Bharat Mission" was launched, troops posted in the Siachen glacier have sent back to the base more than 63 tonne garbage. According to an army statement, these loads of garbage included packing material, barrels and perishables. On arrival to disposal areas, the trash was buried in deep trenches dug mechanically in areas which are not on run of rivers and where landmass is not fragile. Siachen, at an altitude of 9500-21000ft, the highest battlefield in the world, is a place where everything is ferried from the hinterland. It becomes a challenging work to move all types of waste out of the glacier. The removal of garbage is necessary so that these do not become environmental hazard.
Take a look at how the Army men carried out Swach Bharat Abhiyan at Siachen: