Audit query

Dear All,

We would like to know what kind of audit is applicable for our software private limited company. Our company is registered with ROC in the May, 2011 and after that we obtained PAN, TAN, Import & Export Code, Service Tax Numbers. We just served only one client during the month of Nov.2011 and for which we already paid the service tax. We would like to know in this kind of scenario what type of audit has to be conducted and what are the corresponding duedates/timelines.

Thanks in advance.

with rgds,

Prasad