Phanigiri is a Buddhist site in Suryapet district, Telangana. It dates to the 1st Century BCE - 4th century CE period.
A Brahmi stone inscription from Phanigiri
Vihāra generally refers to a Buddhist temple or Buddhist monastery for Buddhist renunciates, mostly in the Indian subcontinent. The concept is ancient and in early Pali texts, it meant any arrangement
Mahabodhi Temple in India.
Kanha Cave vihara in the Nasik Caves, 1st century BCE, is one of the earliest.
Plan of cave 1 at Ajanta, a large vihara hall for prayer and living, 5th century
Cave 12, Ellora, a late multi-story rock-cut vihara. Further decoration of the pillars was probably intended.