add android API level 19 support. more device can use this app.
solve some Out Of Memory issue.
A Postal Index Number (PIN), or sometimes redundantly a PIN code, refers in India to a code in the post office numbering or postal code system used by India Post. The code is six digits long.
Find out Pin Code or Postal Code list for Indian states and Union Territories.
include 900,000 Pin code data.
-Search by city.
-Pin code reverse lookup.
Note: The app contains 900,000 records of PIN data, so your device's memory must be at least 4GB. Otherwise, you will not be able to run this application. OOM errors may occur.
