salary & trading in equity shares

ITR 4: Return Form SUGAM cannot be used in following cases:::
(a) Income from more than one house property; or
(b) Income from Winnings from lottery or income from Race horses; or
(c) Income under the head “Capital Gains”, e.g. Short-term capital gains or long-term capital gains from sale of house, plot, shares etc.; 
(d) Income taxable under section 115BBDA; or  ....................  

Because of STCG in shares....... you cannot file ITR 4..........

So, you can file ITR 3 even for presumptive assessment