Comments Written by Tech Desk | Updated: February 3, 2016 3:08 pm Vodafone’s 4G service has been rolled out in Delhi. Here’s how you can upgrade to a 4G SIM. Vodafone 4G services in Delhi and National Capital Region (NCR) will begin rolling out from today. The 4G service will start with Gurgaon’s prominent business and residential corridors. Vodafone...