The Chariot Ritual (Bhimarata) is a special birthday celebration ritual common to the Kathmandu Valley. It is practiced by both Hindus and Buddhists and celebrated when an elder reaches the ripe age of 77 years, 7 months, 7 days, 7 hours, and 7 minutes. The festivities of the day require the elder to mount a chariot and ride through the city accompanied by the performance of various religious services in front of a sacred stupa. To commemorate this day, Buddhists are also required to commission the construction of a stupa, an architectural reliquary mound. If unable to build a full-sized stupa, the family can sponsor a small three-dimensional or hammered metal sculpture or a painting (paubha).

The exquisitely crafted gold gilt répoussé depicts the Bhimarata rite. Two horses and two mythical creatures draw the couple in the chariot. In the lower left corner sits a monkey, a sight commonly associated with the famous Swayambhunath Stupa, the most important Buddhist shrine of the Kathmandu Valley. The adjacent painting depicts a 77-year-old elder along with family members in the lower register engaged in a full parade. The key figures in this composition, starting from the top, are the Five Transcendent Buddhas. Below them are the ten astrological deities, representing the planets in the heavens and the calculation of time. At the center of the painting is a stupa containing the Ushnishavijaya (Victorious Crown Ornament Goddess) representing the continuation of an already long-life for the birthday elder. The stupa can also be seen in the répoussé work. Two further auspicious deities included in the birthday rituals are depicted below, Vasudhara (the Goddess of Abundance) and Manjushri (bodhisattva of Wisdom).