I dont know all the details about your travel but I will tell you what I had to do when I flew via Delhi. While on my way to Ktm, I stopped by delhi for two days so I checked out my bags in Delhi...through the customs. It is just one form, very short and you dont have to pay anything if you are not carrying lots of electronics and precious metals. Then I had to check in everything when I eventually flew to Nepal. While coming back, I didnt get out of the airport in Delhi as my stopover was very short. So I checked in my bag in Ktm and collected it here in US....there was no hassle of customs in Delhi at all as the luggage was put on your connecting plane. The officials in Delhi customs will however, come to you after your luggage has been put on the right plane just to make sure that there is no missing luggage. Its really not a big deal to go through Delhi..the tickets are much cheaper and I think people just make it look like a bigger hassel. Have a safe trip!