Hi Jagan,
TDS deduction will have to be done only by the Accounts/Finance/Payroll only which is to be supervised by the Authorised Signatory who will use the 'digital signature' made available for this purpose to issue Form 16 & Form 16 A.
However everyone be he/she in taxable bracket or not should know 'how to calculate' Taxable Income and TDS/IT, Tax planning etc. for one's own knowledge.
Attached material will help you to gain knowledge on the subject. Also you can use the Excel sheet attached to this link to work out automatically all the requirements you would need for the current year IT.
https://taxguru.in/income-tax/salary...2018-2019.html