This year I had to opportunity to visit an Indian wedding being a friend of the groom. It was a very interesting experience and I would like to give a presentation in my home country about it. To do that I would like to make sure I explain accurately the different traditions.
On of the ceremonies consisted in the groom's family and close friends using a brush made of something like a pine tree branch, putting it in three(I think) bowls - one seemed like olive oil, one some yellowish powder and one more - and then brushing that against the groom's feet, palms, shoulders and head. Every now and then someone would put toothpaste on him and at the end the family put something like yogurt on his head. We were also supposed to pour fruit juice all of this ending up to be a huge mess. It was a lot of fun for everyone but the groom :) Also they told us the groom was supposed to wear yellow during the ceremony.
I asked my Indian friends about the meaning of the ceremony and about more details but it seems they were also not sure about that. Could someone please explain what is purpose of this ceremony and help fill in the details that I am not sure about? What is the content of the different bowls? Why yellow clothing?
EDIT: adding more details I missed out in my initial post: