This is a reverse glass painting from southern India. A description of a similar painting (but in a different size), published on page 80 of the book βReverse Glass Painting in Indiaβ by Professor Anna L. Dallapiccola states:
βRama's coronation, Ramapattabhisheka, is one of the most popular themes of South Indian painting. The central group consists of Rama seated in lalitasana on the throne with Sita to his left; Lakshmana carrying a chamara standing immediately behind him; a green-complexioned Bharata carrying a parasol standing behind Sita; Shatrugna with a fly whisk to Bharata's left; and finally, in the foreground, Hanuman lovingly supporting Rama's right foot.
The background consists of a three-bayed hall capped by a lavishly gilded central tower and domes. The side groups on the left consist of ascetics, the monkeys and Jambavan β here recognizable by his blue snout. On the right are a number of courtly figures. Among them should be Vibhishana, the new king of Lanka, who helped Rama in defeating Ravana, but not readily recognisable here. There are also two ladies, one of whom should be Trijata, Vibhishana's daughter, who comforted Sita during her captivity in Lanka. An elephant and a horse, symbols of royal power, are conspicuously depicted in the foreground.β