Notification no. 23/2010 ST dated 29-4-2010grants exemption from vocational Training, by a Vocational Training Provider  registered under the Skill Development Initiative Scheme with the Directorate General of Employment and Training, Ministry of Labour and Employment, Government of India.

To claim the exemption it should provide the approved training courses.

The list of approved training courses can be downloaded from here
 

Service Tax Exemption for approved Modular Employable Skill training under SDIS enables registered VTPs to claim relief. Notification No. 23/2010 ST grants a service tax exemption for vocational training delivered as Modular Employable Skill courses where the provider is a Vocational Training Provider registered under the Skill Development Initiative Scheme with the Directorate General of Employment and Training; to claim the exemption the provider must deliver NCVT-approved MES courses listed with specified course codes, minimum qualifications, ages, durations and training fees, with curricula and the authoritative course list available via DGET.