The Beas River, known as Vipasha in ancient times, holds significant historical and mythological importance. Legend says that Sage Vyas, the author of the Mahabharata, created the river from Beas Kund. Alexander the Great's army reached the banks of the Beas in 326 BC but refused to cross it, halting their eastward expansion. This marked the easternmost extent of Alexander's conquests. The river has been a witness to numerous historical events and cultural exchanges throughout the centuries. During the British Raj, the area around the Beas became a popular hill station, and the river played a crucial role in the development of the region's infrastructure. Today, the Beas continues to be a vital resource and a symbol of the Kullu Valley's rich heritage.