Joe Root finally fell to Jadeja after making 29 runs.
England captain Ben Stokes won the toss and chose to bat first. Openers Zak Crawley (20) and Ben Duckett (35) added 55 runs for the first wicket. Rohit Sharma saw the pitch might aid spin and immediately brought in his ace spinners.
Ashwin got into the action soon, removing both the openers, while Jadeja got rid of Ollie Pope. He could have gotten Joe Root early as well but for a possible DRS malfunction that gave the batter a life.
The incident happened in the 15th over when Root attempted a paddle sweep off Jadeja. The ball slid through to hit his pads. Jadeja was convinced that it was adjacent. He convinced captain Rohit and keeper KS Bharat - both undecided - to go for the DRS.
The ball tracking took ages to come on as players from both sides looked at the big screen with anxiety. When ball tracking finally came, the ultra edge showed a spike. But the problem was, the spike was there even before the ball reached anywhere near Root's bat.
The spikes on the ultraedge continued as the ball went close to Root's bat and the spike was at its peak when it thudded into his pad. There was seemingly a gap between the ball and the bat to the naked eye. But there was also a deflection when it passed the bat.
The third umpire Marais Erasmus, concluded that the spike came from the bat and asked the on-field umpire to stay with his decision on not out.
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Former India coach Ravi Shastri, who was in the commentary box then, felt Root was lucky.
"I think he got away with one. The spike came even before the ball reached his bat," he said.
Former England captain Kevin Pietersen said the evidence was "inconclusive".