In Indian architecture, gavaksha or chandrashala are the terms most often used to describe the motif centred on an ogee, circular or horseshoe arch that decorates many examples of Indian rock-cut arch
The earliest surviving chaitya arch, at the entrance to the Lomas Rishi Cave, 3rd century BC
The city of Kusinagara in the War over the Buddha's Relics, South Gate, Stupa no. 1, Sanchi.
Piled-up gavakshas at Osian, Jodhpur
Conjectural reconstruction of the main gate of Kusinagara circa 500 BCE adapted from this relief at Sanchi.
The Lomas Rishi Cave, also called the Grotto of Lomas Rishi, is one of the man-made Barabar Caves in the Barabar and Nagarjuni hills of Jehanabad district in the Indian state of Bihar. This rock-cut c
Gavaksha
…thatched roofs of buildings, none of which have survived; the earliest version replicating such roofs in stone is at the entrance to the non-Buddhist Lomas Rishi Cave, one of the man-made Barabar Caves in Bihar. The "chaitya arch" around the large window above the entrance frequently appears repeated as a small motif…
Entrance to the Lomas Rishi cave, Barabar hills.
Lomas Rishi and (at left) Sudama caves
Unfinished interior (floor and ceiling) of Lomas Rishi cave. The rocky bumps left in the state on the ground, presented by Gupta as a proof of a hasty interruption of the digging, appear in the farther left corner.