Project Kannoli: free cataract surgery camp for the tribals of Vellimalai hills by Radhatri Nethralaya under the aegis of Gurupriya Vision Research Foundation, the public charitable trust of Radhatri Nethralaya on 18/5/25. 400 tribals screened and 81 patients to undergo free cataract surgery @ Radhatri Nethralaya 106 free glasses given.