Coorinates: 23°38′N 86°10′E / 23.63, 86.17 Chas is a city and a municipality in Bokaro district in the state of Jharkhand, India. Chas is also included in the Urban area of Bokaro Steel City having Population of More than 150000. Chas market is one of the biggest wholesale market in the region. It is situated on the junction of NH-23 and NH-32.