Upper part of a compound wall with perforated precast concrete elements. Here, one such element consists of four rows of six openings: we can see the slight crack between the element to the left and the next one. Somehow I absorbed the use of the word compound in India, meaning a cluster of buildings having a shared purpose, usually inside a fence or wall. These can be either domestic (such as the houses of an extended family with associated utility buildings), or business or industrial buildings. Compound walls are often constructed partly or wholly of prefab concrete elements, like here.
A prefab element like the ones used here may also be used as a ‘window’ set into a building wall, providing ventilation and an amount of privacy at the same time.
We can still just about see that originally the wall had been painted in a light ochre color, overpainted in white. Both layers are almost gone – more so in the lower half of the perforated elements than their upper half, indicating the weather plays a big role in the decay. The black stuff at the top is mold – if the paintwork is not redone regularly, eventually that will take over. Through the holes we catch some glimpses of the building behind (complete with peeling wall paint).