Complex sentence: Mentioned as one of three styles of temple building in the ancient book Vastu shastra, the majority of the existing structures are located in the Southern Indian states of Tamilnadu, Karnataka, Kerala, and Andhra pradesh.
Split into simpler sentences: Mentioned as one of three styles of temple building in the ancient book Vastu shastra. The majority of the existing buildings are located in the Southern Indian states of Tamilnadu, Karnataka, Kerala, and Andhra pradesh.