India-Japan T20I wide row: What laws say about umpire's reversal of decision

India survived a scare against Japan on Tuesday, edging the hosts by two runs in a rain-hit one-off T20 International that was reduced to five overs per side at the Sano International Cricket Stadium.Japan needed six runs from the last four balls while chasing India's 32 for 4. But the match took another turn when a wide call was reversed after protests from India.Left-handed batter Alexander Shirai-Patmore attempted a reverse-hit against Axar Patel and missed the ball, which went well down the leg side. The umpire called it a wide. The same sequence was repeated off the next delivery, with another wide called.The second wide decision was also initially given, but after Axar and India captain Shreyas Iyer protested, the umpire spoke to the leg umpire, New Zealand's Chris Brown, and reversed the decision.The equation then returned to six runs from three balls.