Which ITR form and whether tax audit needed

Somebody please help with this situation…

My friend is a salaried person and his income for the period April 2017 to March 2018 is less than 2 lakhs, so he does not fall into the taxable bracket. He had done option trading with a turnover of 1 lakh and intraday trading of 1000 rs turnover and 800 rs future turnover. His doubt is:

  1. Which ITR form is to be submitted?
  2. Does he need tax audit in this case?