Cave 29 is an unfinished chaityagriha cut in the area high above Cave 21 at a time (469 CE) when there was no sufficient space remaining for such a hall at the site’s main level. It was possibly, Upendragupta, the sub-king at Ajanta. The cave was not discovered when Ajanta’s sequential numbering was done since it is placed in a relatively inaccessible spot high above the other caves. Cave 29’s excavation was underway for only a few months or a year before work on it stopped. The cave’s proximity to Upendragupta’s royal complex makes it reasonable to believe that this was perhaps another one of king’s donations. This cave is now inaccessible. 

References:

• Debala Mitra, Ajanta, 1964.
• Walter Spink, Ajanta: A Brief History and Guide, 1990.
• Walter Spink, Volume 18/5 Ajanta: History and Development: Cave By Cave, 2007.