NEW DELHI : Digital news units of Indian billionaires Gautam Adani and Mukesh Ambani, and other outlets including the Indian Express and the Hindustan Times, are joining proceedings against OpenAI for improperly using copyright content, legal papers show. Courts globally are hearing claims by authors, news organisations and musicians who accuse technology firms of using their copyrighted work to train AI services without permission or payment. The Indian media outlets, including Adani's NDTV