Explanation:

Statement 1: The craft of the Thatheras of Jandiala Guru constitutes the traditional technique of manufacturing brass and copper utensils in Punjab. The metals used – copper, brass and certain alloys – are believed to be beneficial for health.
Statement 3: The process of manufacturing is transmitted orally from father to son. Metalwork is not simply a form of livelihood for Thatheras, but it defines their family and kinship structure, work ethic and status within the social hierarchy of the town.
Learning: The process begins with procuring cooled cakes of metal that are flattened into thin plates and then hammered into curved shapes, creating the required small bowls, rimmed plates, to larger pots for water and milk, huge cooking vessels and other artefacts.Heating the plates while hammering and curving them into different shapes requires careful temperature control, which is achieved by using tiny wood-fired stoves (aided by hand-held bellows)buried in the earth.