ITC on purchase before 30.06.2017

Sachin (Gurgaon) (24 Points)

21 June 2017  
If we purchase on 21.06.2017 from delhi and the rate of Cst 12.5% and also excise tax charged. After applicable of Gst our sale product in 28% category.we can get credit 60% of 28 gst rate or only cst amount or not take ITC of CST.
PLEASE SOLVE.