Rolling One With Cowry Dice
Hopefully you are playing Pachisi and not Parcheesi.  If yes, then this answer is accurate.

An ebook by Damian Walker here:
A Book of Historic Board Games

Page 25 - 1.2.7


  A grace counts as if were a separate throw scoring 1, in addition to
  the value of the cowries.  Graces are used for entering and moving
  pieces.


As long as you have a grace at then end of your set of rolls you can bring this piece home.