The pass is open from May to November and closed from December to April, according to the Yadong border checkpoint.
The pass was closed for more than 40 years. It reopened in 2006 for trade only.
In 2015, China started to allow Indian pilgrims to use the Nathu La Pass. In 2016, 9,000 vehicles and more than 20,000 people travelled through the pass, including 588 Indian pilgrims, according to the statistics.
The pilgrims traditionally climbed over Qang La Pass, which is 5,200 meters above sea level on the China-India-Nepal border, to reach their destination. The road is steep and usually covered by snow.
Indian nationals have made the pilgrimage to Tibet every year since 1981. China has welcomed almost 80,000 Indian pilgrims in the past decade alone.