Atal I is a mountain of the Garhwal Himalaya in Uttarakhand India. Earlier it was known as P.6566. It was rename after a team from N.I.M. Nehru Institute of Mountaineering climb four unnamed peaks and named it after former Prime Minister Atal Bihari Vajpayee According to Colonel Amit Bisht, principal N.I.M. The peak lies above the Shyamvarn Glacier. The elevation of Atal I is . It is joint 72nd highest located entirely within the Uttrakhand. Nanda Devi, is the highest mountain in this category. It lies 5.7 km ENE of Sudarshan Parbat . Swetvarn lies 5 km west and it is 5.6 km ESE of Chaturbhuj . It lies 3.1 km SE of Yogeshwar .