Sindri in Bihar is famous for ________________.
The fertilizer industry is located around the production of nitrogenous fertilisers. Other chemicals are phosphatic fertilisers, ammonium phosphate and complex fertilisers. These have a combination of nitrogen, phosphate and potash.
Sindhri is an industrial township within Dhanbad municipal limits of Dhanbad in Jharkhand. It is famous for fertilizers productions.
Above information shows that Sindri in Bihar is famous for the Fertilizer Industry. Other options are irrelevant. So correct option is B.