Approved Metro's In India

Hi Sir/ Mam
I would like to know that what are the approved metros (Cities) in India which is been approved by our Central Government of India.
To my Knowledge that Mumbai/Chennai/Kolkatta and Delhi are the 4 metropolitan cities .
Is there any thing else apart from this.
Please suggest me - Very Urgent
Thanks in Advance

Dear Chamu,
as per our knowledge, only these are the metro-politan cities
chennai/delhi/mumbai/kolkata
Regards
Srinivas B

Hi, Here is the list what i have, hope it helps:

List of Metropolitan cities in India based on population;
1 Mumbai 12,883,645 Maharashtra 2
Delhi 11,215,130 Delhi 3
Bangalore 5,104,047 Karnataka 4
Kolkata 4,638,350 Bengal 5
Chennai 4,352,932 Tamil Nadu
6 Ahmadabad 3,769,846 Gujarat 7
Hyderabad 3,632,094 Andhra Pradesh-A-Status City
Metro population ( including suburban areas)
Chennai 6,957,669
Bangalore 6,158,677- A-Status City
Puna-Upgraded to A-Status from B
Regards,

Hi rkandadai;
Its a good one, however i need those cities which is been approved by our central government of India.