At a startup office in this Indian city, developers are fine-tuning artificial-intelligence chatbots that talk and message like humans. The company, LimeChat, has an audacious goal: to make customer-service jobs almost obsolete. It says its generative AI agents enable clients to slash by 80% the number of workers needed to handle 10,000 monthly queries. "Once you hire a LimeChat agent, you never have to hire again," Nikhil Gupta, its 28-year-old co-founder, told Reuters. Cheap labour and English proficiency helped make India the world's back office — sometimes at the expense of workers elsewhere. Now, AI-powered systems are subsuming jobs done by headset-wearing graduates in technical support, customer care and data management, sparking a scramble to adapt, a Reuters examination found....