03 June 2008
TDS to be effected on the total bill including service tax. This is becasue the income tax does not give a clarity on this subject.
there is recent ruling excempt service tax to be subjected to TDS only for a specific service not all. I am sorry I do not remember which service is that.
04 June 2008
only in case of rent tds should be deducted net of service tax. In rest of the case withholding would be on gross amount since the respective section says the payment of "any sum" rather than "income".