E-tds return

In the form it is written as "Taxable amount on which tax is to be deducted", hence In my view, you should mention it as Gross Salary less of all deduction and allowances but including tax deducted on salary. 

In addition to this, in the 4th Quarter, you have to file the entire details of salary received alongwith the deduction amount of the complete year for calculation of Tax in Annexure II of 24Q.

@ Khusbhu Premlani :

I Think You should show the amount on which the tax is Calculated, and it is on Net Salary .........

You have to show the gross salary of the employee in the quarterly transactions. you have to provide complete salary paid details in the Q4 return. your monthly details should match with the gross salary mentioned in the Q4 retutrn.

GROSS SALARY AMOUNT  IS REQUIRED TO BE FURNISHED...