Arriving at Delhi International Airport Terminal 3
Here is a visual guide to your arrival at Delhi's international airport terminal 3. From arrival to immigration at Delhi's International airport terminal three is shown in this video.
From Immigation to making it out the door of the Delhi's international airport
From Immigration to Duty Free
From Duty Free to Baggage carousels
Getting past customs to the arrival's hall at Terminal 3, New Delhi
Once you exit, you can't come back.
Hope this helps.