ITC on business promotion event - Goods and Services Tax - GST

Had a doubt regarding availing ITC in the following cases. Would really appreciate if someone could guide me through. 1) I have hired a event management company to organize an event for business promotion where my clients and employees will be the attendees. Food will also be provided in the event to the attendees. The event management company charged me a lumpsum amount in the invoice for organizing the event ( no bifurcation) . Can I claim the ITC on the same? 2) What would be the scenario if the invoice showed separately the amount charged for banquet, food , decoration,etc. Would I be eligible for claiming the ITC? 3) In both the cases above, if I avail the services through a hotel (not through an event management company) what will be the scenario. Will I be eligible to claim ITC?