Service tax rate on event management services

Atanu Bagchi (MBA) (29 Points)

25 March 2017  
i found in google that on the service of event management service is ST @ 10% of service valus+ @ 2% Edu Cess on service tax value + @ 1% Higher Edu Cess on service value, its totally different from 14% ST+0.5% SBC+0.5% KKC .......i need to know the the reason behind it......?