Service tax return query

While filing ST Return 3 Excel Sheet in the sheet named : Payable Service (1)  one head is as below:

Taxable Amount Charged :

j. Gross amount for which bills/ invoices/ challans are issued relating to service provided/ to be provided (including export of service and exempted services)

i am confused which amount to enter there, for eg if service value is 50000 service tax is 5150   should i mention Rs. 55150 (which is invoice value given to client / party or just mention the taxable value of Rs.50000/-

its confusing pls help karo koi to ;)