First that Postal code and zip code are same Don't be confuse about it If any where you need Zip code then you use postal code.
Let me tell you fast about India postal or Zip code.
you find out india postal codes Now i am try to find delhi
these are delhi postal code and try out find your city area where you live For Example I am from Central Delhi
and A.G.C.R. S.O is my area
And if you are from India United state or Any country then you easily find your Zip code postal code from our website. you see search bar
there you easily find your country city and area or use of your home address find out Zip code postal code and if you see in the website you see all countries For Example are you from india then you click on states and you see all cities of india if you want to know india postal or zip code then you easily find out and you also see the map of your country if you want to find your zip code postal code from map then you are also able to find out and there you see city postal code.
It is a Six digit number for post office numbering or postal code system used by india.Each PIN is mapped to precisely one conveyance post office. The conveyance office can either be a General Post Office (GPO), a head office (HO), or a sub-office (SO)