Question

does a stupa also contain a garbhagriha where a buddha's statue is placed , a shikhara, a pradakshina pata, relic casket and a mandapa or it only contains some specified architectural works?

Answer 1

1) Yes, the stupa contains a garbhagriha where deities such as Buddha, Vishnu, and Shiva were placed and worshipped.
2) Stupa also contains a shikara, a pradakshina pata, relic casket, a mandapa and some architectural works.
3) E.g. Amaravati was a place where a magnificent stupa once existed. Many of the stone carvings for decorating the stupa were made about 2000 years ago.
4) Also some artificial caves were very elaborately decorated with sculptures and painted walls.