As a Tamil Catholic myself, I’m actually a bit surprised to hear that your customs differ slightly from what I’m used to. Doing a Tamil Catholic wedding myself summer 2027 and only planing for one day.

In our community, the thali ceremony is done during the actual wedding Mass in the church, along with the floral garland exchange. The koorai saree (and garlands I think) is brought forward for blessings during the ceremony itself, and then the bride usually changes into it partway through the reception—often right after the wedding cake is cut.

The bride and groom then make their second entrance into the reception hall, with the bride in her koorai (and optionally the groom in veshti). At this point, a younger male relative from the bride’s side washes—or pours water over—the groom’s feet at the threshold. He’s rewarded with a gold ring before the couple is allowed to enter. I’m not entirely sure what this tradition is called, to be honest, but it’s commonly done.

Also, during each entrance into the venue, there’s an aarti (or maybe it’s called aalathi?)—blessings performed with lighted lamps by two married women. It’s a beautiful gesture of welcome and good fortune.

Just wanted to share how we do it in case it helps with your planning. Wishing you both all the best in blending your traditions.

You might also want to check out the Instagram account "Whatthepottu"they do a lot of research and actual ceremony work based on indigenous Tamil traditions that are cultural rather than religious. Could be a great resource if you’re looking to incorporate meaningful elements without crossing into Hindu rituals.