Have not watched the movie. But if I’m not mistaken - many of the past traditions and including for the royalty. It was that the grooms family that would traverse through the land to pick up/bring back the bride back to his home. It’s still somewhat practiced if im not mistaken, but not like the caravan style as you seen in those old school films. A cleaner example of this in this film of a [prominent ruler] marries and goes to get his new bride back home. (https://en.wikipedia.org/wiki/Jodhaa_Akbar)