Even as the terrifying cyclone, Biparjoy, tore along the west coast of India, wreaking untold misery, another dreadful climatic crisis played out at Mumbai’s Prithvi Theatre. Siachen, written by Aditya Rawal and directed by the maverick Makarand Deshpande, captured the agony of being posted on the highest and coldest battlefield on earth, with a blizzard passing through it.