EX 9.1 - CST and VAT for India

We are implementing EX 9.1 for India.  AP is already in use, and CST and VAT have been set up and are working for AP.  Can anyone share any tips and tricks, or other insights, about using CST and VAT for Expenses for India, that would differ from regular VAT for countries like England, Spain or France?  Since the navigation for setup of VAT for India is different, I am wondering if setup of VAT for EX BUs or Expense Types is different for India than for VAT setup using the regular VAT navigation.

Thanks in advance.