Dear Sir,
On Dine In service the service tax will be on 40% of the total amount. However, in case of Dine Out it seems that no service element is present, therefore, no service tax need to charged. But practically, most of the restaurants are charging the same
‘Bundled service’ means a bundle of provision of various services wherein an element of provision of one service is combined with an element or elements of provision of any other service or services.
See: "Clarification regarding changes made or proposed in Budget 2012-2013 - Dated 16-3-2012 - Service Tax"
Practically, in these days, Bundled services have no relevance after introduction of negative list. Only for administrative purposes; i.e. for making payment and filing of return, category of service need to be defined.
In your case, you can charge service tax @ 8.65% as bundled service tax till 31st May 2015. However, w.e.f 1st June 2015 service tax on bundled services will be 9.8%.