In short: The sister of the groom is celebrating her brother and welcoming a new sister into the family — a joyful, often busy role on the groom's side. Her outfit should be festive and comfortable to move in: a vibrant lehenga, a flowing sharara or an elegant anarkali in a colour that coordinates with the groom's family. Look beautiful and celebratory, while keeping the bride and groom centre stage.
Watching your brother get married is a milestone of its own. Here's how to dress for the occasion with joy and ease.
Celebrating your brother
The groom's sister is often deep in the celebrations — welcoming the bride, helping host, and dancing with the best of them. It's an emotional, happy role, and a beautiful outfit helps you feel part of every moment.
What to wear
| Style | Why it works |
|---|---|
| Vibrant lehenga | Festive and photogenic |
| Flowing sharara | Easy and graceful for dancing |
| Elegant anarkali | Refined and comfortable for hosting |
Coordinating with the groom's side
A nice touch is to harmonise with the groom's family and the wider celebration palette — complementing, not copying, the bride. With a 900+ hand-dyed colour library this is easy to plan. (See coordinating without matching exactly and, for her counterpart, the sister of the bride.)
Comfort for a long, joyful day
Between welcoming, hosting and dancing, you'll be busy — so a comfortable, well-fitting outfit lets you enjoy it all. Made-to-measure means it moves with you.
Frequently asked questions
What should the sister of the groom wear?
A festive, comfortable outfit — a vibrant lehenga, a flowing sharara or an elegant anarkali — in a colour that coordinates with the groom's family, while keeping the couple centre stage.
What colour should the groom's sister wear?
A celebratory shade that harmonises with the groom's side and the wider palette, complementing rather than copying the bride.
What silhouette is best for the celebrations?
A sharara or flowing lehenga is graceful and easy to dance in, while an anarkali is refined and comfortable for hosting.
How do the two sisters coordinate?
They can harmonise with the overall palette and with each other in tone and formality, without matching exactly or echoing the bride's colour.
At AÏNN London we make festive family outfits to measure in 900+ shades, so the groom's sister feels as joyful as the day. See the collection.
Last updated: June 2026
