Claiming ITC on Share Market Transactions

Dear sir, as this is your different businesses and on shares there is no GST so you can't claime this bank GST in your other businesses

You have to follow section 17(2) and do not take ITC related to share market business.

Further you also have to do reversal of common ITC as per Rule 42 of cgst rules as you are dealing in exempted business of share trade.

Your exempted turnover for shares would be 1% of total sales of shares as per Explanation (b) given under Rule 45 applicable for ITC chapter.