Vaitala Deula (dedicated to goddess Chamunda) in Khakara style, Bhubaneswar, Odisha - Tantrik (Occult) worship followed here.


Vaitaḷa deuḷa, Bhubaneswar Odisha upload.wikimedia.org

Above image; A 8th century Hindu temple, Vaitaḷa Deula - Chamunda temple  in Bhubaneswar, Odisha. This temple has strange, but terrifying features associated with tantric worship. image. Prateek Pattanaik,

Vaitaḷa deuḷa.Bhubaneswar,en.wikipedia org

Above image: Vaitaḷa Deuḷa, Chamunda Temple, Bhubaneswar of  Odisha  A pediment in one of the sides of the temple depicting Shiva in a sitting position. Image:  Benjamín Preciado 

Vaitaḷa deuḷa Bhubaneswar,  en.wikipedia

Above image: Artwork on Vaitala Deula, Bhubaneswar,  Odisha state. Image: Shiladityaa ......

Vaitaḷa deuḷa or Baitala deuḷa, a 8th-century Hindu temple typical built in Khakara style, dedicated to Goddess Chamunda is in Bhubaneswar, the capital city of Orissa, India. This is also locally known as "Tini Mundia Mandira". It was built by Queen Tribhuvana Mahadevi of Bhauma Kara dynasty. 

Vaitaḷa deuḷa Bhubaneswar, bhubaneswartourism.in/

Baitaḷa Deuḷa or Vaitaḷa deuḷa Temple’s impressive  feature is the shape of its sanctuary tower. About the semi-cylindrical shape of its roof, it  is a leading example of Khakhara order of temples that are similar to those of  the Dravidian Gopuram of  South Indian temples. Its gobbled towers with a row of Shikharas suggest possible  southern influence. The  deula-tower is oblong in plan, but  the Jaga mohan is a rectangular structure; embedded in each angle is a small subsidiary shrine. Baitala deuḷa has  some delicate figures, but in relief.

Panels of Hindu deities, mostly Shiva and his consort Parvati in her Shakti form on the  outer wall are unique.They also  include hunting processions, capturing of wild elephants and  occasional erotic couples.

Above the facade of the deuḷa (tower)  left of the Jagamohana  there are two Chaitya windows - the lower one with well  carved figure of Sun God (Surya)  with Usha (Dawn) and Pratyusha shooting arrows on either side and with Aruna in front, driving a chariot of seven horses. These features are normally associated with the Sun God in the Hindu text books.

The sculpture in the upper Chaitya window has  a 10-armed Nataraja in dancing posture. In front of the flat roofed Jagamohana there  is a stone post carvings of  two Buddha like figures seated in Dharma-Chakra-Pravartana mudra.

An interesting aspect is the temple's Tantric (occult) associations, marked by eerie carvings in the sanctum (garbhagriha).  The eight armed Chamunda is locally known as Kapaḷini, a ferocious form goddess Durga. Obviously, the Baitaḷa Deuḷa is a Shakti shrine dedicated to shakti .

The presiding deity is Chamunda or Charchika sits on a corpse flanked by a jackal and an owl and is decorated with a garland of skulls. She holds a snake, bow, shield, sword, trident, thunderbolt and an arrow and is piercing the neck of the demon. The niche is capped by a chaitya window containing seated figures of Shiva and Parvati. Tantric worship is normally common in such shrines as in the Devi temples of Kerala state.

The Chamunda is in the midst of numerous small  allied deities that are  carved in the lower parts of the walls, each within a niche separated by a pilaster.  A skeleton form of Bhairava forming the counterpart of Chamunda is  on the east wall near the door entrance. 
There  are many eerie carved features on the north  such as  bloodied  skull-cup with  head, two more heads on a tray, a jackal feasting on the dead body and a woman holding a head on the left on the pedestal.. 

There is a stone post on the temple premises for 
sacrificial offerings there either chained or tied before the shrine. The tantric character of the temple is  well highlighted  in many parts. Though they are imaginary, the temple reveals the tantric aspects that are quite mind-boggling and terrifying.   
Normally  way in the people specialized in black magic and spells visit such temple before embarking on their elaborate prayer and Puja. Various rituals and practices by Tantriks (occultist) and Kapalikas (worshippers of human skulls) were associated with the temple in the past. Therefore, the temple may have been known as ‘Vaital’ -  Vetala’, meaning spirits.
https://bhubaneswartourism.in/vaital-deul-temple-bhubaneswar
https://en.wikipedia.org/wiki/Baitala_Deula