Where was the first fertilizer plant of India set up?

BPSC treated this question as having no correct option (cancelled).

Explanation

India’s first fertilizer plant was established in 1906 at Ranipet in Tamil Nadu. India’s first public sector fertilizer plant was established in 1951 at Sindri, then in Bihar (presently in Jharkhand). Subsequently, the fertilizer plant at Nangal in Punjab was set up. Ranipet is not among the options, so no option is strictly correct. If one of them must be chosen, option (b) is the best answer.