Old Hindu places of worship have a distinctive chaitya. What is the chaitya?

Answer 1

It is actually the "Hall" in a Buddhist temple. Along each side of a chaitya are columns and at the end, a dome.
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Answer 2

Chaitya halls and viharas.

Chaitya halls were for congregational worship (an activity which fundamentally distinguishes Buddhism from Hinduism).

The viharas were the dwelling places of the monks and usually consisted of cells cut into the walls around three sides of a hall. All very austere and demanding great hardships from the body. One enduring feature of these caves is the arched entrances and vaulted interiors. This basic structure was very dear to the Buddhist monks.

Answer 3

A chaitya is a Buddhist or Jain shrine including a stupa. In modern texts on Indian architecture, the term chaitya-griha is often used to denote assembly or prayer hall that houses a stupa. Architecturally they show similarities to Roman design concepts of column and arch.
Chaitya-grihas were probably constructed to hold large numbers of devotees and to provide shelter for them (Mitra 1971). Early chaitya-grihas, such as at Bijak-ki-pahadi in Bairat which is ascribed to the emperor Ashoka, were built as standing structures with the stupa being surrounded by a colonnaded processional path enclosed by an outer wall with a congregation hall adjoining it (Mitra 1971). The more spectacular and more numerous chaitya-grihas, however, were cut into living rock as caves. This practice has had a long tradition in Hinduism and was taken up by Buddhists in the first century BCE.
The earliest rock-cut chaitya-grihas, similar to free-standing ones, consisted of an inner circular chamber with pillars to create a circumambulatory path around the stupa and an outer rectangular hall for the congregation of the devotees. Over the course of time the wall separating the stupa from the hall was removed to create an apsidal hall with a colonnade around the nave and the stupa.
The chaitya-griha at Bhaja Caves was constructed in the first century BCE. It consisted of an apsidal hall with stupa. The columns sloped inwards in the imitation of wooden columns that would have been structurally necessary to keep a roof up. The ceiling was barrel-vaulted with wooden ribs set into them. The walls were polished in the Mauryan style. It was faced by a substantial wooden facade. A large horseshoe-shaped window, the chaitya-window, was set above the arched doorway and the whole portico-area was carved to imitate a multi-storeyed building with balconies and windows and sculptured men and women who observed the scene below. This created the appearance of an ancient Indian mansion.
In Bhaja, as in other chatya-grihas, the entrance acted as the demarcation between the sacred and the profane. The stupa inside the hall was now completely removed from the sight of anyone outside. In this context, in the first century CE, the earlier veneration of the stupa now changed to the veneration of an image of the Buddha. Chaitya-grihas were commonly part of a monastic complex, the vihara.

Answer 4

It's a temple with stone carvings in the wall.

Answer 5

chaitya! is a buddhist,hindo sanctuary shrine or temple