Zone DigitRegion NameCovered States & Union TerritoriesPrimary Headquarter
1 Northern Zone 1 Delhi, Haryana, Himachal Pradesh, Jammu & Kashmir, Ladakh, Punjab, Chandigarh Delhi / Ambala
2 Northern Zone 2 Uttar Pradesh, Uttarakhand Lucknow / Dehradun
3 Western Zone 1 Gujarat, Rajasthan, Dadra & Nagar Haveli and Daman & Diu Jaipur / Ahmedabad
4 Western Zone 2 Maharashtra, Goa, Madhya Pradesh, Chhattisgarh Mumbai / Bhopal
5 Southern Zone 1 Andhra Pradesh, Karnataka, Telangana Bangalore / Hyderabad
6 Southern Zone 2 Tamil Nadu, Kerala, Puducherry, Lakshadweep Chennai / Kochi
7 Eastern Zone 1 West Bengal, Odisha, Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Tripura, Sikkim, Andaman & Nicobar Islands Kolkata / Bhubaneswar
8 Eastern Zone 2 Bihar, Jharkhand Patna / Ranchi
9 Army Postal Service (APS) Military post offices and field operations across all states Base Post Office (New Delhi / Kolkata)

Sources & References