The document summarizes the key features of Nagara and Dravidian temple architectural styles. The Nagara style originated in North India and is characterized by temples built on raised platforms with curving shikhara towers. It developed three regional schools. The Dravidian style emerged in South India during the Chola dynasty and features a compound wall, a single vimana above the main temple, and a tall gopuram entrance. It is classified into five historical periods that saw distinctive developments in temple design.