We are so flattered by your interest in South Asian fashion! While Indian clothes are not required, we encourage anyone who may be interested in wearing Indian clothes to the wedding to check out these useful primers: https://growingupgupta.com/the-ultimate-guide-to-indian-clothing/ https://www.hatkay.com/blogs/hatkay/a-complete-guide-to-indian-outfits-and-where-to-buy-them-online
Again, Indian clothes are not required but if you would like to shop, there are are a few stores in NJ that have good options: Regards in Spotswood, NJ (https://www.regardswholesale.com/) Manyavar - Oak Tree Road, Edison. (Honestly, Oak Tree Road is an excellent place to just window shop, it's full of Indian clothing stores!) If you prefer to shop online, here are some websites: https://www.azafashions.com/ https://www.perniaspopupshop.com/ https://www.lashkaraa.com/ https://www.utsavfashion.com/men https://www.houseofmasaba.com/ Lastly, for rental options (an Indian 'Rent the Runway') check out https://preserve.rent/