Nadaswaram
（重定向自Nagaswaram）
The nadaswaram, nagaswaram, nadhaswaram or nathaswaram (Tamil:நாதஸ்வரம்), is a double reed wind instrument. It is a traditional classical instrument originated in Tamil Nadu and also used in Andhra Pradesh, Karnataka, and Kerala (India).
This instrument is "among the world's loudest non-brass acoustic instruments". It is a wind instrument similar to the North Indian shehnai but much longer, with a hardwood body and a large flaring bell made of wood or metal.