metallurgy is the art and science of extracting out metals from their respective ores.
metals are then combined to form
"revolt of 1857 brought people closer and it to raise the sense of nationality because of the administrative, political, socio-religion, economic and military causes that made people work together.
the immediate cause becomes the greased cartridge with the enfield rifle that makes the revolt broke with mangal pandey’s incident.
it spread in north like fire.