Salary income plus bussiness

I need to know being a taxpayer in FY 2018-19 I got salary and deducted IT at source under section 194A ,also got income from other sources as my professional consultant with deduction of TDS uner section 194j.

I club the total income of salary and the income from other sources , here i like to know as per as salary income is concern their is deduction like standard deduction,80C PT etc but in case of income from other sources and that to consultant how taxable income in this can be saved .

Please help me out .

thanks

regards