Some observations on recent I-D and D-I transit in DEL T3:

As you may recall there are 5 ways to get from the arrivals to the departure level:

- the domestic - intl transfer service: deplane from your domestic flight (or get off the bus) and go down the escalator (or stay on the same level coming from a bus) there is a special facility for transit pax who checked their bags thru in the hall with the copper hands on the wall. Service on this entry point are hit of miss, but will save you a lot of walking. There are AI and AF-KL agents roaming the queues and will fast track you if running late
- the escalator & lift on the domestic end: collect your bags, turn right when you exit the first set of doors after the baggage belt. At the complete end of the concourse a lonely CISF jawan polices that way up. S/he will check if you have a domestic onward ticket/BP or send you packing to the other ways. Once you go up everything is cordoned off and you are shown out the terminal by the CISF guy sitting at the glass door to the checkin area you end up curbside and have to enter the terminal again.
- the transfer desk in the middle of the arrivals concourse: always crowded. Here you could theorectically drop your bags and take the lift up to the security or checkin desks. Its a night mare, never used it due to crowding.
- the escalator & lift on the international end: collect your bags, turn LEFT when you exit the first set of doors after the baggage belt. At the complete end of the concourse a lonely CISF jawan polices that way up. S/he will check if you have a international onward ticket/BP or send you packing to the other ways. Once you go up you get into a glass walled holding pen with yet another CISF checkpoint that will only let you oínto the checkin area if your flight is in 4h or less
- just walking out as if you want to go to Delhi: here you pretend to be a regular pax arriving in Delhi. In the middle of the terminal there are walk escalators where you push your cart on and get transported to the departure level. Select one of the many gates where there are no major lines and enter the checkin area.