The famous Kailasanath Temple at Kanchi was built by Narasimhavarman II. It is important to note that option 1, Mahendravarman I, is incorrect. The Kailasanath Temple is dedicated to Lord Shiva and was constructed during the Pallava dynasty in the 8th century. Narasimhavarman II, also known as Rajasimhan II, ruled the Pallava kingdom from 700 to 728 CE. He is well-known for his patronage of art and architecture. The Kailasanath Temple is one of the earliest examples of Dravidian architecture and is renowned for its intricate carvings and reliefs. The temple complex consists of several smaller shrines and a large central temple with a pyramidal vimana. It is an important pilgrimage site and a testament to the rich cultural heritage of the Pallava dynasty.