The intense planning and tactical execution of Operation Meghdoot, launched on April 13, 1984, was a turning point in India's control over the treacherous Siachen Glacier. Led by then Army Chief Gen AS Vaidya and a team of strategists including the forgotten hero, Lieutenant General CN Somanna, the Indian Army took over key heights, including Indira Col, in an unprecedented move that caught Pakistan off guard. Amit K Paul's upcoming book Meghdoot: The Beginning of the Coldest War reveals the intricate details of the top brass's war game, codenamed "Walnut Cracker," that paved the way for India's triumph.