A billet is a piece of metal that's long and either round or square in shape. Billets are made in two main ways: directly by pouring molten metal into a shape or indirectly by hot rolling a large metal block called an ingot.
Afterwards, billets are shaped into different forms through processes like rolling and drawing. The final products we get from billets are things like metal bars and wires.
You can find a lot of these billets in places such as Punjab, Chhattisgarh, Odisha, Uttar Pradesh, and more.