The Zimmerli Museum, where the reception will be held, is directly across the street from the Kirkpatrick Chapel.
The Heldric Hotel is a 5 minute drive or 15 minute walk from the Kirkpatrick Chapel and Zimmerli Museum.
You're welcome to wear either Indian or Western clothing, whatever you're most comfortable with! Roma will be wearing red/Rani pink and white, you can avoid these colors if you want, but it's not necessary.
If you are in the New Jersey area, there are many great stores on Oak Tree Road in Edison, NJ. You can also buy an outfit online. Some website you can look at are: Aza Fashions: https://www.azafashions.com/en-us Aishwarya: https://aishwaryadesignstudio.com/ Utsav: https://www.utsavfashion.com/