
Looks like Registrars have been successful at a tribunal regarding service tax -
From - http://www.taxscan.in/service-tax-charges-collected-nixi-accredited-registrars-cestat/26663/
The Delhi bench of the Customs, Excise and Service Tax Appellate Tribunal (CESTAT) has held that the service tax cannot be levied on the National Internet Exchange of India ( NIXI ) for collecting various charges from their accredited registrars.
From - http://www.taxscan.in/service-tax-charges-collected-nixi-accredited-registrars-cestat/26663/