An awful England batting collapse gave India complete control of the third Test on day two at Trent Bridge.
The home side were bundled out for 161, surrendering all 10 wickets in the period between lunch and tea.
At one stage they lost nine for 74 runs in the space of 20.5 overs, with India all-rounder Hardik Pandya claiming 5-28.
The tourists themselves had lost their last four first-innings wickets for six runs to be dismissed for 329.
When they batted for a second time, India moved to 124-2 to end a chaotic day with a lead of 292 and the perfect opportunity to cut their deficit in the five-match series to 2-1.