Indian art has been religious and its artistic forms are conservative. Hindu temples are developed during two thousand years. Their architectural evolution is related to religious considerations. The architect had to keep the basic proportions unaltered.
Every decorative detail has the origin in the ancient timber buildings. Although some objects have lost their purpose, Indian architecture is known to be extremely conservative. Also the techniques of building are very simply not because of the lack of knowledge, but because of religious traditions.
Nevertheless the architect was allowed some freedom to embellish the temple. The overwhelming wealth of architectural forms and elements characterize an Indian temple. This decorative exuberance has no parallel in the artistic expressions of the world.
The historical, cultural and geographical differences between northern and southern India brought surprisingly distinct styles in architecture and sculpture. Indian architectural styles are: the Nagara (northern style), the Dravida (southern style) and the Vesara (a hybrid style).
The Nagara style has a plan based on a square, but the walls often give impression to be circular.
The southern style has a pyramidal tower consisting of progressively smaller pavilions. It also has a dome on the top of the temple.
India has many temples that are worth visiting. You do not get bored in such a country.