Karegar is a beautiful store in Port Melbourne (or online) that sources traditional outfits from Indian designers for purchase: https://karegar.com.au/ Alternatively, Pernia's Pop-Up shop is a great option with a huge amount of options available. Sizing can be tricky so we'd suggest buying a "free size" or buying a larger size and getting the outfit altered here: https://www.perniaspopupshop.com/
There are a few rental options available via social media, however, we'd recommend getting in quick if you can as options are fairly limited! Options include: Wear of India (instagram: @wearofindia) Veira Boutique (instagram: @veira_boutique) There are other options available on social media as well!