Consider the following statements regarding Indian temple architecture:

1. The Dravida style is characterized by its towering vimanas and extensive sculptural embellishments, predominantly found in Tamil Nadu.
2. The Nagara style temples often feature a square sanctum with a towering shikhara and are typically located in northern India.
3. The Vesara style represents a synthesis of Nagara and Dravida architectural features, primarily seen in Karnataka and parts of Maharashtra.
4. The Kalinga style, exemplified by the temples of Odisha, is noted for its elaborate carvings and distinctive curvilinear spires.

Which of the statements are correct?