Relating to tds

Harsha Vardhan (Article Student) (42 Points)

23 March 2016  
Mr. X&co is a charted accountants firm and providing services to Mr. Y, a company and charges 10000rs as professional fee and service tax there on is 1450rs so total 11450. My question is while paying to Mr. X& co, Mr. Y is to deduct tds u/s 194j, On what amount does tds is to be deducted? On 10000rs or on 11450rs.plz clarify