Tds 194j

Hello,

I have taken some professional services from consultant in diffrent months and the amount of bills contain service tax too.

Now the problem is that should i have to deduct tds on whole amount or last bill only.

the amount of bills as under..

9/12/2015 2500-/

7/1/2016 3435

25/1/2016 22877

Above amount including of s.tax.

Please suggest.