Foreign engineer chargeable visit

"""Who is liable to pay service tax?

Normally, the „person‟ who provides the taxable service on receipt of service charges is responsible for paying the Service Tax to the Government (Sec.68 (1) of the Act). However, in the following situations, the receiver of the Services is responsible for the payment of Service tax :

(i) Where taxable services are provided by foreign service providers with no establishment in India , the recipient of such services in India is liable to pay Service Tax. """"

Extract from :::https://www.cbec.gov.in/resources//htdocs-servicetax/faq-29sept11.pdf;jsessionid=050876A93F6D31FC6F936162D0377BA4

Sir, 

Can I know the nature of Service ?