Q. Which of the following are among the million -plus cities in India on the basis of data of the Census 2001 ?1. Ludhiana     2. Kochi    3. Surat    4. Nagpur  Select the correct answer using the code given below  

1. 1,2 and 3 only
2. 2,3 and 4 only
3. 1 and 4 only
4. 1,2,3 and 4