I also know of a chinese/north indian couple! haha actually i came to know them when I met up with them when choosing for wedding photography. Turned out that the photographer is a north indian while his partner is his girlfriend who is chinese.. not sure if they are married though.. but just thought that it is an interesting match
I think planning the wedding should be similar to planning any other wedding!! Just be wary of certain cultural traditions for the chinese and indian side so that you won't disrespect either family!! Good luck
I think you both have to compromise esp. if each other's culture has a specific wedding tradition/custom. It all depends on how you both balance things out ~ Breathe, it'll work out just fine!