Thanks for your reply.
We booked two seperate tickets, but we will be able to receive both boarding passes and check the baggage through. On other airports 1h5min connecting time is no problem, but I'm not familiar with the Delhi airport.
I know how it works with 2 seperate tickets and the connecting ticket is fully refundable, I just need to know, if there is priority service for business class passengers or if we can book a kind of VIP or whatever service to assist us.
I'm sorry, that I'm asking a question, that was asked before, but I just can't find the answer.