Hey as per my idea SASE is Snow and Avalanche Study Establishment and here I am giving you its details

DRDO
The Defence Research and Development Organisation is an agency of the Republic of India, charged with the military's research and development, headquartered in New Delhi, India.

SASE
Snow and Avalanche Study Establishment (SASE) was set up in 1969 near Manali to combat the hazards of snow and avalanches not only to help the Armed Forces to fight and live in the mountains

Objective
It Provide precision avalanche forecasting support to the services including advice on avalanche control measures , enhance avalanche forecasting capability through systematic data collection in snow bound areas and creation of snow cover information system

Products

Consultancy services to State Governments for the protection of important
installations, settlements and highways.

Consultancy to Border Road Organization.

Avalanche Forecasting for civil population of J&K, Uttaranchal and HP .

Expertise in realignment of roads and co-location of camps etc in snow-
bound areas .

Designing of avalanche control structures .

Avalanche Data Cards