Answer : 4. "Telangana"
Explanation :

The Department of Archeology and Museums has discovered a coin hoard of the Ikshvaku period at the Phanigiri site in Suryapet district of Telangana. Phanigiri, meaning “hill of snake hoods”, is a Buddhist site about 110 km from Hyderabad. Excavations yielded a mahastupa, chaitya griha, vihara and a life-size plaster cast of a Bodhisattva. Brahmi label inscriptions from the Satavahana and Ikshvaku periods (~2nd – 3rd century AD) were also found, as well as a Thorana panel indicating the co-existence of Mahayana and Hinayana sects.