Which ITR form to be used for tax filings in online without need of auditor service?

One of my friend is full time trader, only in Equity- Intraday & Delivery, & NO F&O, NO COMMODITY; no salary, no rental income or any other earnings from other business, and has short term capital loss of apprx.Rs.15000/- last year,

  1. Which ITR form to be used for tax filings in online without the need of auditor service?

  2. Can this STCG (Loss) can be carry forwarded & adjusted in coming years? If so, which ITR form to be used without the need of auditor service?

He need to file ITR 3 for intraday else for Only STCG ITR 2 could’ve been easy

@TAXIQ.IN
I earn through my pension and trade in almost all segments i.e. FnO, MCX, Equity but 99% intraday trading in MCX and FnO. Which ITR to be filled. Pls enlighten me.

You need to fil ITR 3