Q. Which of the following is not a twin city of India? Answer:
Thrissur and Thiruvalla
Notes: There is no official designation of cities as "twin cities", but due to being situated close to each other, the following pairs/triplets of towns/cities are often called twin cities:
• Ahmedabad and Gandhinagar
• Hubli and Dharwad
• Cuttack and Bhubaneswar
• Munger and Jamalpur
• Durg and Bhilai
• Hyderabad and Secunderabad
• Kolkata and Howrah