Smith was recently ruled out of the tournament due to an elbow injury.
Kings XI Punjab will be desperately hoping for a good outing this season.
Earlier, the Afghanistan Cricket Board had made a request to adjust the dates citing the IPL season
Smith is set to undergo elbow surgery which might delay his international comeback as well.
Both have been sent back home from the Australia tour.
Steve was retained by the Rajasthan Royals.
The batting and spin-bowling coaches, Amol Muzumdar and Sairaj Bahutule, have been retained.
Pant plays for the Capitals in the IPL.
The tournament is set to get underway on March 23.
The dates are clashing with the general elections in India.