The Indian Standard, IS 16333 (Part 3): 2017 - ‘Mobile Phone Handsets Part 3 Indian Language Support for Mobile Phone Handsets – Specific Requirements (First Revision)’ has been revised and published as IS 16333 (Part 3): 2022, which was planned to be mandatory for existing licenses on December 17, 2022. Considering the requests received from the Industry and the present status of implementation..