3.1 Origins

Structural (free-standing) Hindu temple architecture emerged clearly by the Gupta period; the Dashavatara Temple at Deogarh (Madhya Pradesh) is among the earliest surviving examples, marking the start of the Nagara style. Aihole (Karnataka), with its variety of early experimental temple forms under the Chalukyas, is often called the "cradle of Indian temple architecture."

3.2 Nagara Style (North India)

Characterised by a curvilinear tower (shikhara) over the sanctum (garbhagriha), typically without a large boundary wall or elaborate gateway.
Sub-styles: Odisha (Lingaraja Temple Bhubaneswar, Jagannath Temple Puri, Konark Sun Temple — a UNESCO site shaped like a giant stone chariot with 24 carved wheels, built under Narasimhadeva I of the Eastern Ganga dynasty in the 13th century), Khajuraho/Chandela style (Madhya Pradesh, famous for intricate figural and erotic sculpture), Solanki style (Gujarat — Sun Temple Modhera, Rani ki Vav stepwell), Central Indian/Malwa (Bhojeshwar Temple).

3.3 Dravida Style (South India)

Characterised by a pyramidal tower (vimana), often within a high compound wall with monumental ornamented gateway towers (gopuram), which grew progressively taller and more elaborate over the medieval period.
Key examples: The Pallava rathas and shore temple at Mahabalipuram (7th century, Narasimhavarman I); the Brihadeeswarar Temple at Thanjavur (Chola, Rajaraja I, c. 1010 CE, a UNESCO "Great Living Chola Temple" with a 216-foot vimana, among the tallest temple towers of its time); the Gangaikonda Cholapuram Temple (Rajendra I); the Meenakshi Temple, Madurai (later Nayaka-period reconstruction, famous for towering, brightly painted gopurams).

3.4 Vesara Style (Deccan, hybrid)

Blends Nagara and Dravida elements; associated with the Chalukyas of Badami/Kalyani (Badami, Aihole, Pattadakal — a UNESCO site showing both styles side by side) and the Hoysalas (Belur, Halebidu — famous for extraordinarily intricate soapstone carving, star-shaped platforms).

3.5 Rock-Cut Monolithic Temples

The Kailasa Temple at Ellora, commissioned by the Rashtrakuta king Krishna I (8th century), is carved entirely from a single rock downward — an extraordinary feat of engineering, among the largest monolithic structures in the world.
Elephanta Caves (near Mumbai): Famous for the monumental Trimurti Shiva sculpture, c. 5th–8th century CE.