The Sulbasutras are ancient Indian texts that provide guidelines for constructing altars and performing rituals in Hinduism. They are part of the larger Vedanga literature, which focuses on the auxiliary disciplines related to the Vedas. The texts emphasize the importance of geometry and measurement in religious practices, showcasing the mathematical knowledge of ancient India. These texts date back to around 800-200 BCE and are attributed to various sages. The Sulbasutras include rules for creating specific shapes and dimensions for altars, reflecting the integration of mathematics and spirituality in ancient Indian culture.