Women’s western reception gown

Hey all, posting on behalf of my wife. She is looking for places that would sell western reception gowns for a church wedding. The budget is around 15-30k Rs. We do not live in the city and hence don’t have much idea where to begin and search 😅 Looked at few generic brands like Zara, Aldo etc but couldn’t find any. Also preference is to find something ready made since timewindow is short! Thanks in advance for the help.