Can anyone tell me which ITR form I need to fill?

I am a salaried person and ofc income is less than 50 lac and also I have invested in stocks,ipo and mutual funds. And some of I sell in less than 1 years and holding maximum of them. So can anyone plz tell which ITR I need to file and can help me with clearing more doubt in future. As I have joined last year as a fresher so this is my first time.