Explanation:

Three orders of architectural features of the temples of Odisha are:

• Rekhapida (Rekha Deula): Tall straight building (looking like a shikhara) covering the garbhagriha.
• Pidhadeul: It is the mandapa, a square building where worshippers are present and also where dancing takes place.
• Khakra (Khakra Deula): Rectangular building with a truncated pyramid-shaped roof. Temples of Shakti are usually in this type.
• Location: Ancient Kalinga – that includes modern Puri District including Bhubaneswar (ancient Tribhuvanesvara, Puri and Konark).
• Odisha temples are a distinct sub-style of the Nagara style called Kalinga Style.

Hence option 2nd is correct.