Taking Prime MInister Narendra Modi's smart city vision forward, Tata Docomo, the unified telecom brand of Tata Teleservices Limited, in association with the New Delhi Municipal Council, will launch public wi-fi access in Connaught Place in New Delhi on Sunday, a company statement said on Friday. Delhi's Lieutenant Governor Najeeb Jung will launch the Wi-Fi services in Central Park, Connaught Place at 3.30 pm, the company added.