Pin code System In India 

First Digit—Region— States Covered 

1 —  Northern - Delhi, Haryana, Punjab, Himachal Pradesh 

and Jammu & Kashmir 

2 —  Northern - Uttar Pradesh and Uttaranchal 

3 —  Western - Rajasthan and Gujarat 

4 —  Western - Maharashtra, Madhya Pradesh and 

Chattisgarh 

5 —  Southern - Andhra Pradesh and Karnataka 

6 —  Southern - Kerala and Tamil Nadu
 
7 —  Eastern - West Bengal, Orissa and North Eastern

8 — Eastern - Bihar and Jharkand

9 — APS - Army Postal Service