Which cellular network works in Spiti valley? A Which cellular network works in Spiti valley? BSNL works in all regions of Spiti valley and Kinnaur. Reliance Jio has started expanding its network in Spiti valley. It is expected to get functional by the summer of 2021. Category: Spiti valley tour FAQs By raachotrekkers We trudge on the least explored trails and terrains of Kinnaur, Spiti, Uttarkashi and Garhwal region. View all of raachotrekkers's posts.