So how long will it take = depends on what kind of gifts you take for the babus
jokes apart, it a process that requires someone to do some work once you submit all relevant documents and complete tasks on your end. In current times, it would be fair to expect some delays, although with govt staff returning back to offices, hopefully things will start to move quicker. There is likely a backlog that they have to go through as well.
These forum links provided above are very good collection. While I have not had to use it, I do follow them, and when I do get to that stage, I will definitely be going through those forums for making sure I have ticked all the boxes.