Given a travel related situation, and given a specific question about the situation, summarize the question into a title

I will arrive at Delhi Indira Gandhi International Airport at 2:45 AM, I plan to book my next domestic flight to Leh with GoAir which will depart at 8:30 AM. Is 5 hours enough time to clear all the customs and go to the domestic airport?
How long is the customs process in Indira Gandhi International Airport?