<Ul> <Li> Samkhya </Li> <Li> Yoga </Li> <Li> Nyaya </Li> <Li> Vaisheshika </Li> <Li> Mimamsa </Li> <Li> Vedanta <Ul> <Li> Advaita </Li> <Li> Dvaita </Li> <Li> Vishishtadvaita </Li> </Ul> </Li> </Ul> <Li> Vedanta <Ul> <Li> Advaita </Li> <Li> Dvaita </Li> <Li> Vishishtadvaita </Li> </Ul> </Li> <Ul> <Li> Advaita </Li> <Li> Dvaita </Li> <Li> Vishishtadvaita </Li> </Ul> <Dl> <Dd> Other schools </Dd> </Dl>

Who was said to be the author of ancient hindu law