When any employer provides any service to his customer, which income is excess under the tax then company liable for the pay tax.
Service tax charged at rate 12 %( India) + 3% E.Cess & H. & E.Cess
=12.36%
In addition, service tax deposited of in under 5 days who you charged service tax to his customers.
In the payment of Service tax amount you can Credit availed during of the month.
Moreover, if any company purchased of any item that has Excise duty & E.Cess with E.Cess then you can credit availed when you received excise form to your seller.