Service taax on deputation of employees

There is deputation of certain employees by a holding company to its subsidiary company for a certain time period. During the period of deputation , salary to the deputed employees is paid directly by the subsidiary company to those employees. There is no re-imbursement made to holding company and neither any bill is raised by holding for such deputation of employees to subsidiary. Would such transaction come under the ambit of service tax?

Pls clarify...