Do I really need a tax audit

I have Nil salary income, around 12.5 lakhs in Short Term Capital Gains from shares sales and around Rs. 30000 of other short term capital gains (at slab rates) and around Rs. 10000 loss in Intra Day trading with a turnover of just Rs. 1.3 Lakhs.
Do, I really need to get a tax audit done just for the 10K losses. Should I instead show a 6% gain from business and profession or is there is some other way.
Further, if I say opt for presumptive taxation then how do I show my Capital Gains.