India's World Cup plans have been hit by an unwanted issue on the eve of their opener against Australia on Sunday as star batsman Shubman Gill has been diagnosed with dengue. 

It has been learnt that the in-form opener, who missed the team's net session at the MA Chidambaram Stadium on Thursday, is undergoing treatment after testing positive for dengue. Those in the know said that the Indian team management is monitoring Gill's progress and a call on his availability will be taken after another round of tests on Friday.

In case Gill fails to recover for the game against perennial challengers Australia, India will be weighing their options on whether Ishan Kishan or KL Rahul should walk out with captain Rohit Sharma for the start of the innings.