England were comprehensively beaten by Australia at Lord’s on Tuesday which was their third defeat of the tournament.
England currently stand at fourth place in the points table but are now just one point ahead of Bangladesh and Pakistan and two ahead of Sri Lanka.
India are expected to get a lot of support from Birmingham's big British Asian community which will mount pressure on the home side even more.
"I personally think we have to be very calm about how we approach the next couple of games because the games themselves might get quite emotional, especially with the atmosphere at Edgbaston," said Test captain Root.
"We believe we're still more than capable of qualifying for the semi-finals and when that happens, it doesn't really matter how you got there because that's when the tournament really starts to kick in,” he added.
"We'll see these two games as quarter-finals if you like, which in a way when it comes round to the knockout stage should serve you well.
"You're going to have to win big games at some stage in the tournament if you're going to go on and win it, so it may be that ours have come just a little bit sooner than we anticipated."
England hope that opener Jason Roy, who has been sorely missed in the three games, will recover from a hamstring injury and replace James Vince at the top of the order.
The home side also have fitness concerns over their ace bowlers Jofra Archer and Adil Rashid.
Rashid was realistic over the prospect of a relatively hostile crowd, at the same ground where his close friend Moeen Ali was booed against the same side in 2014.
"People will enjoy themselves, have some fun and banter," he said. "We will not be fazed by that.
"It is disappointing sometimes, but it happened. The crowd get involved but it does not bother us. We played India last summer at Edgbaston and we enjoyed it and did our job."