Bumrah beats Lyon with a ripper, short outside off-stump and moving away as the right-hander can't resist a poke.
He again flirts with the next ball which moves away only to get the edge but it goes through the vacant third slip region for a four.
And immediately captain Virat Kohli realises his mistake and calls in a fielder at third slip.
The last ball is a quick yorker as Lyon is hit on the toes but the confident shout for leg before is turned down as the batsman had got a clear inside edge.
Head flicks Ishant off his pads square on the leg side for a couple before he takes a single two balls later.
Lyon then is tempted to go for the drive as Ishant bowls it in the channel just outside the off-stump as the right-hander is beaten before he ducks under the bouncer.
Meanwhile, it has again started to drizzle at the Adelaide Oval but the umpires are happy to continue play at the moment.
Head turns Bumrah to behind square on the leg side for a single before Lyon ducks under a bouncer.
He does well to drive the last ball straight down the ground past mid-off for three runs to keep the scoreboard ticking.
India's pacers trying quite a few bouncers to Lyon, who is happy to just let it go. It is the full deliveries though, which are giving him a few problems. Ishant beats him with a cracking delivery, short of good length and moving away as Lyon pokes and is beaten.
He clips the last ball to deep square leg for a single which helps him keep strike.