This is well outside my field of expertise, but this new resource for South Indian paintings seems like a nifty and necessary effort. Created by Anna L. Dallapiccola, John and Fausta Eskenazi, and Mr. C. Ganesan, this project documents South Indian murals (primarily in Tamil Nadu) that are threatened by vandalism and decay.
From the authors' description:
"We would like to share this collection of splendid murals with as many fellow enthusiasts, students, scholars, and travellers, as possible. The aim of this documentation is not only to provide a tool for further research on South Indian painting, but mainly to make the art world aware of this endangered cultural heritage and to encourage not only scholarship, but also restoration and conservation works."
See more at South Indian Paintings (https://southindianpaintings.art/)