Download the Service Tax and VAT book applicable for May 2013 from below link. You will surely find this easy to understand the concepts. It also has lots of examples in addition to coverage of all old exam papers solved.
i am also in IPCC..i use singhania it is the best book for refrence but this is not the time to read from some new book...stick to the book from where you used to read, you will be all confused and it will take time to adjust to the language of new book