The IISCO and TISCO industrial plants are related to which industry?
Iron and steel
IISCO (Indian Iron & Steel Company) and TISCO (Tata Iron & Steel Company, now Tata Steel) are among the major iron and steel industries in India. IISCO is located in West Bengal, while TISCO is based in Jamshedpur, Jharkhand. These companies play a vital role in India's steel production, making "Iron and Steel" the correct answer.