It will depend on how your invitation was addressed (e.g. The ___ Family)- try just putting in your last name.

https://www.theknot.com/content/things-to-expect-indian-wedding

There is a great article below to help with this. "If you are not comfortable wearing traditional Indian clothes, any cocktail dress or ensemble that you would wear to a Western wedding is suitable. Given the unique opportunity, however, to experience culture in its richest form, guests should consider wearing traditional Indian wedding attire if they feel comfortable." -the knot https://www.theknot.com/content/what-to-wear-indian-wedding#:~:text=%22If%20you%20are%20not%20comfortable,wedding%20attire%20if%20they%20feel

https://www.theknot.com/content/indian-wedding-traditions

https://www.theknot.com/content/what-to-expect-bridesmaid-indian-wedding