England, who lost two wickets off successive balls immediately after tea to Mohammed Siraj (2/34), were reduced to 23 for two before Root and opener Rory Burns (49) added 85 for the third wicket to stabilise the innings
Conway reached his double-century with a pull for six and was out without facing another ball, coming up just short as he sprinted back to the non-striker's end for second run
India, who began at the overnight score of nine for one, had a nightmarish start when they lost four wickets at the team total of 15 and then four runs later at 19 lost their sixth wicket in the form of skipper Virat Kohli.
