Vodafone Idea leapfrogged to become India's largest telecom company, although for a short while, after the separate entities merged their business last year. One year later, its ambitions to shake up the wireless mobile market still seem unfulfilled, but the consumers have been on the greener side. Ookla conducted a performance review of Vodafone Idea since their merger and found that the download speeds for both Vodafone and Idea networks improved by 23.6 per cent after January this year and 51.2 per cent year-over-year, respectively. Despite the surge in overall data speeds for Vodafone Idea, Airtel retained its top position of being the 'fastest operator' for the examined time.