30 October 2013
1. do a thorough reading of the TDS provisions, latest case laws etc on the same topic
2. from the whole set of payments made by the auditee, call for random check on the applicability of TDS provisions. the sample size should depend on the overall number and quantum of the transactions.
3. You may also verify the TDS returns filed by the auditee to check its accuracy.
4. check the challans paid, the computation of interest, if any.