Head coach Rahul Dravid states India`s T20 bowlers must deliver in the death overs and the statement came just after Bumrah`s injury.
Rohit Sharma`s team conceded 73 runs in the last five overs of Tuesday`s defeat against South Africa in Indore.
Dravid told the media after the match, "We must improve." "That`s an area we`d want to enhance since, in huge tournaments, every periphery might matter."
Bumrah`s back injury is a major setback for India before the premier T20 competition in Australia that is about to take place on October 16.
Dravid remorse," the squad would miss the speedster but won`t rush to replace him."
"Bumrah`s absence is a major loss, he`s a brilliant player, but it happens," Dravid added furthermore.
Mohammed Shami would be an "excellent" substitute, but it`s too early to know whether he`s recovered from Covid.
"We`ll take a call once we know how he`s doing," he added.
India`s World Cup team will leave for Perth on Thursday to acclimate themselves to the Australian surroundings.
To remark, India will face Pakistan in Melbourne on October 23.