HI Ram,
Please refer the below points.
1. It is effect from 1st june 2016.
2. 0.5% rate on the all value/cost fo all taxable services.
3. Refer note no 2319788 solution part and also refer the attachment of KKC_customization.pdf file.
4. below are steps are provided like 1. Define condition types, account keys, tax procedure, sd pricing procedure, tax code, condition records, GL accounts.
based on that you can check with your client.
Regards
Madhu M