documents for self employed person for Visitor visa

Hello, I'm applying for the UK standard visitor visa for the first time with my wife and kid to travel to the UK in the summer. I'm self-employed in India and own a business to prove the business and income I've:

• GST registration document

• Business bank account statement

• latest office rental agreement

• Income tax returns(self filed)

do I need anything else? My friend suggested a letter from CA, but I do my own taxes and hence I make my own balance sheet and profit and loss statements for each year, should I upload those as well or any other document that I might have missed regarding my income?