Karnai is located in the district of Ballia, Uttar Pradesh. The pincode of Karnai is 277304. The area "Karnai" lies under takula of Ballia and has a Branch Office. Karnai comes under the head office Ballia. The postal division for pin code 277304 is Ballia.
| Area | Karnai |
| Pincode | 277304 |
| Taluka or Tehsil | Ballia |
| District | Ballia |
| State | Uttar Pradesh |
| Office Status | Branch Office |
| Postal Division | Ballia |
| Postal Region | Gorakhpur |
| Sub Office | Sukhpura |
| Head Office | Ballia |
| Contact Address | Postmaster, Post Office Karnai (Branch Office), Ballia, Uttar Pradesh, India, Pin Code: 277304 |
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 277304 | Apail pin code | Ballia | Bansdih | Branch Office |
| 277304 | Beruarbari pin code | Ballia | Bansdih | Branch Office |
| 277304 | Bharakhara pin code | Ballia | Bansdih | Branch Office |
| 277304 | Dhanauti pin code | Ballia | Bansdih | Branch Office |
| 277304 | Karammar pin code | Ballia | Bansdih | Branch Office |
| 277304 | Karnai pin code | Ballia | Ballia | Branch Office |
| 277304 | Sukhpura pin code | Ballia | Bansdih | Sub Office |
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