To answer this question, we need to identify the city referred to as the "Twin city." Let's go through each option to determine the correct answer:
Option A) Mumbai-Kolkata - This option suggests that Mumbai and Kolkata are the Twin cities. However, this is incorrect as Mumbai and Kolkata are not commonly referred to as Twin cities.
Option B) Mumbai-Delhi - This option suggests that Mumbai and Delhi are the Twin cities. However, this is incorrect as Mumbai and Delhi are not commonly referred to as Twin cities.
Option C) Hyderabad-Sikandarabad - This option suggests that Hyderabad and Sikandarabad are the Twin cities. This option is correct because Hyderabad and Sikandarabad are often referred to as Twin cities in India.
Option D) Chennai-Madurai - This option suggests that Chennai and Madurai are the Twin cities. However, this is incorrect as Chennai and Madurai are not commonly referred to as Twin cities.
The correct answer is C) Hyderabad-Sikandarabad. This option is correct because Hyderabad and Sikandarabad are commonly known as Twin cities.