After textile, India's second most important industry is _________.

The correct option is D Iron and steel
After textile, India,s the second most important industry is Iron and steel. In India, iron and steel industry witnessed rapid growth after independence during second five-year plan in the year 1956-61. Iron and steel industry is the key to modern industrial development. There has been a phenomenal increase in the production of pig iron and steel in the country during last five decades.