Pin code 491331
6 post offices in Bemetara, Chhattisgarh use pin code 491331.
8 post offices in Durg, Chhattisgarh use pin code 491331.
What 491331 tells you
The first digit, 4, is the postal zone. The first two digits, 49, are the postal circle. The first three, 491, are the sorting district, and 331 identifies the delivery office.