Re: Unique Mehndi Dress
i think you should dress for the occasion- they had a huge mehendi so its only appropriate she not wear a boring plain outfit for it. if you're having a smallish one than sure you could wear a lighter outfit if you want.
personally i don't think anyone can outshine a bride on her wedding day, not even the bride on her mehendi day! you're glowing and happy and its a completely different thing.