I travelled Via Delhi last year, I had no choice but to stay one night there and fly to KTM next day. It was a good experience. Do the formalities about exit,Claim your luggage,pass the green line, take the paid up taxy and go to the hotel. The next morning, just the reverse, luggage checking in the xray, just like  in US. Delhi  Airport is changed and managed by young and energatic personnel.  i was cautious of everything and inquired about how I had to go out of the terminal and even how to take a paid up taxy. I had doubt even the taxy driver will take commision when he drops out there at the hotel as our Nepalese guys do in KTM. But later I knew Hotels there do not need to give any commion as they are full most of the times. It was late night around 11 at the old Delhi(Fatehpuri) to figure it out the location of the Hotel i used to live long time ago, two police peronnel came to us to the parked taxy and asked what we were doing at that period of time( it was 11 o,clock at night).... we explained everything and  they asked me to accompany them so that they will show us the holet nearby. I was hasitant to leave the cab, but the driver accompanied them and returned in a while finding the hotel......I had to giveRs. 100 more to the driver for he has to wait and drive back and forth to find the hotel..... then we stayed at  the hotel there that night. The next morning going to the airport, i asked a question to the  other taxy driver about the chances whether the driver of the taxy and the police personnel  had got some commission for showing us the Hotel. The driver replied the Hotel are all booked most of the time and do not need to give any commission and Fatehpuri, at old Delhi ,was the most safest area to live.