Business income show instead Salary

This discussion addresses a common tax query where an individual mistakenly reported income under 'Business & Profession' instead of 'Salary'. The user received an intimation 143(1) regarding a tax demand and is seeking advice on how to correct this error. While a rectification request via the e-filing portal is suggested, it's noted that this might not be a solution if no 'mistake apparent from the record' exists.