Service tax registration

Karthik Mehta (Student) (46 Points)

18 September 2013  
Dear Friends, I am doing business of travelling and have turnover of Rs. 1400000/-. Expenses for Diesel is Rs. 600000/-. what will be limit to registered under act whether it is 1400000/- or 800000/- ? Direct Expenses are considered to determine value taxable service? plz help its urgent Thanks to all