Which one of the following statements is correct?

The correct statement is A.

A) India is the second largest producer of nitrogenous fertilisers in the world. This statement is correct. India is indeed the second largest producer of nitrogenous fertilisers, primarily urea, globally, after China.

B) India is the ninth largest steel producing county in the world. This statement is incorrect. India is currently the second largest producer of crude steel in the world, after China.

C) India is the second largest producer of silk in the world. This statement is also factually correct. India is the second largest producer of raw silk globally, after China. (Note: If this were a single-choice question, the existence of two factually correct options (A and C) would indicate a potentially flawed question or a specific context/year where only one was considered correct. However, based on general knowledge, both A and C are correct.)

D) India ranks third in the world in coal production. This statement is incorrect. India is the second largest producer of coal globally, after China.