India suffered a dramatic top-order slump to set up a thrilling finale to the third Test against England at Lord’s.
The tourists had the upper hand after dismissing England for just 192 in their second innings, with off-spinner Washington Sundar taking 4-22.
That left India needing 193 to go 2-1 up in this five-match series after both teams made 387 in their first innings.
India, however, collapsed to 58-4 at stumps, with the tourists requiring a further 135 runs to win on final day.
Yashasvi Jaiswal was out for a duck, skying a hook off express fast bowler Jofra Archer to wicket-keeper Smith.
Karun Nair was lbw to Brydon Carse with India captain Shubman Gill, who has already scored a double hundred and two centuries this series, falling in similar fashion.
And in the last over of the day’s play, Stokes bowled nightwatchman Akash Deep to raucous cheers from the home crowd.
But India opener K.L. Rahul, fresh from his first-innings score of exactly 100, was still there on 33 not out following several typically elegant boundaries.
Earlier, Root and Stokes joined forces with England in trouble at 87-4.
But a partnership worth 67 ended when Root, who made a hundred in the first innings, was bowled behind his legs trying to sweep Sundar.
Root’s 40 was the top score of England’s second innings.
Smith’s three previous scores this series had been 184 not out, 88 and 51, but he managed just eight before he was bowled.
Sundar, on an increasingly helpful pitch, had now taken 2-3 in 11 balls, with England 164-6.
All-rounder Stokes, without a Test hundred in over two years, showed plenty of discipline while batting throughout all of Sunday’s second session.
But, in common with several England team-mates, he gave his wicket away when on 33 the left-handed batsman was bowled for 33 swinging himself off his feet trying to slog Sundar.
