There is more than enough general wedding advice out there today, but here are a few things to consider specifically for an Indian wedding.
You will hear this wedding saying over and over again during the time leading up to your wedding… “it’s whatever you want” “you’re the bride” “this day is all about you” Do not be deceived. In an Indian wedding, it is Not all about you. This is an event put on by your family and if you lose perspective of that you will be disappointed by the results.
Chose your battles. It is important to think about things like who is paying, how long will this incident be remembered. For examples, if your in laws are going to remind you about xyz for the next 50 years of your life, perhaps it is better to look at the long term benefit of giving in, rather than dealing with consequences for years to come. (of course you should get something you want out of the compromise as well!)
Remember that this is a highly emotional time for everyone involved. Do your best to stay calm and rational. Talk and vent to your friends. You do not want to have a breakdown on your wedding day when you have spent so much time and energy planning - have your breakdowns beforehand.