Interstate taxes

Durga (Sales Manager) (26 Points)

07 August 2013  
Dear Experts, I have a query regarding inter state transaction. I am a distributor for a software i would like to sell a Maintenance to existing customer.Billing is from Hyderabad and customer is at Delhi. I will add Service Tax if i am selling with in the state. Please suggest what taxes applicable for this transaction. Sasi.G