4. Yuzvendra Chahal
Yuzvendra Chahal might not be the first choice spinner, but he has the ability to pick up wickets in regular intervals and trouble the batsmen. He has been crucial for the Royal Challengers Bangalore and the Haryana domestic team.
When given the opportunity to play for India, Chahal has proven his talent by picking up regular wickets. Is definitely can be a good candidate for World Cup 2019.
5. Rishabh Pant
The Indian wicketkeeper-batsman, Rishabh Pant is pretty raw to become a reliable player in International cricket. If he gets a right amount of grooming he can become a nightmare for bowlers all over the world. If Dhoni decides to hang his boots before the World Cup 2019, then Pant will be the first choice for keeping.
Pant is a talented and powerful batsman and is still just 19 years of age. He may not be a Dhoni but definitely has the temperament to play in the biggest stage.