Service tax on abroad services

Dear All,

Our company has recently started providing technical services to overseas companies particularly in the middle east region where there is no service tax or income tax procedures and therefore we are not seperately add anything in the invoice actual amount. Can you please advice

1. whether need to pay service tax or not; if yes, what is the limit?

2. Is there any tax exemptions of such overseas services? if yes, how to makeout?

Best Regards

Asokan Kanniyappan

+91 95433391919