The Ladarcha Fair is a popular means of celebration to the people of Spiti valley. Before the closure of the Tibetan traders, the fair used to be held at Kibbar maidan in Spit in the month of July. This used to be the meeting point for traders from Ladakh, Rampur Busher and Spiti. It used to offer a good barter ground for them of their production.
But now, the fair is celebrated at Kaza, the headquarters of Spiti Sub Division. The fair is usually held in the 3rd week of August. The fair now observes a get together of visitors and traders from Kullu, Lahaul and Kinnaur. The fair has thus gradually become a conference of Spiti, Ladakh & Kinnaur cultures along with that of the Indian plains.