I would say dont go for JB gupta, since it is bit tricky and you won't get the formulas and concept so easily..
I can provide you all the soft copies of JB gupta..
For SFM, A N Sridhar is good for both concepts as well as problems.
For Auditing, many say kamal garg is good. But i am following padhuka which is nothing but replica of institute material.
For law, Munish Bhandari is good. But too huge. After you finish his big book around 1000 pages), do ur revisions from his smaller book. This smaller book will also help you for revision in the 1 day gap before exam