Welcome to Tnet.
As Mud Hut says, they're diya lamps, used during Diwali.
Diwali (also known as Deepwali and Tihar) is a five-day “festival of lights” celebrated in the autumn mainly by Hindi but also by Buddhists and Sikhs (although for the latter, it was not originally part of their religion). It’s traditional to place a multiplicity of lights (usually small roughly made terracotta lamps, regarded as disposable) inside homes, on housetops, outside doors and windows, around temples and other buildings.
I expect you will have such a community or perhaps a temple in your area.