Regional Variation
Building material depends on location. In hilly country where rocky rubble, ashlar, and pieces of stone are available, these can be patched together with a mud mortar to form walls. Finer stonework veneer covers the outside. Sometimes wood beams and rafters are used with slate tiles for roofing if available. Houses on hills usually have two stories, with the livestock living on the ground floor. Often a verandah runs along the side of the house. The roof is pitched to deal with the monsoon season and the house may sit on raised plinths or bamboo poles to cope with floods.
On the flat lands, abodes are usually made of mud or sun-baked bricks, then plastered inside and out, sometimes with mud mixed with hay or even cow dung and whitewashed with lime.
Where bamboo is available (mainly in the north and northeastern states) it is widely used for all parts of the home as it is flexible and resilient. Also widely used is thatch from plants such as elephant grass, paddy, and coconut. In the south, clay tiles are used for pukka roofing while various plant material such as coconut palm is common for kachcha.
Read more about this topic: Indian Vernacular Architecture