| Village | Gahai |
| Block | Dhaka |
| District | Purbi Champaran |
| State | Bihar |
| Country | India |
| Continent | Asia |
| Time Zone | IST ( UTC + 05:30) |
| Currency | Indian Rupee ( INR ) |
| Dialing Code | +91 |
| Date format | dd/mm/yyyy |
| Driving side | left |
| Internet cTLD | in |
| Language | Hindi,Urdu |
| Time difference | -11 minutes |
| Latitude | 25.62 |
| Longitude | 85.13 |
Gahai is a village panchayat located in the Purbi Champaran district of Bihar state,India. The latitude 25.62 and longitude 85.13 are the geocoordinate of the Gahai.
The surrounding nearby villages and its distance from Gahai are Barharwa , Parri , Balua Goubari , Bargarnafateh , Barharbafateh , Barharwa Lakhansan , Bhagwanpur , Bhaudar , Chandaubara , Dalpat Bishanpur , Dhaka , Gabaudri , Gurheaba , Jatwalia , Jhaua Ratanpur , Karmawa , Karsahia , Kharua Chainpur , Kharuha Ehailyapur , Malkaoniya , Pachpallri , Parsi , Phulwariya , Tamua , Tatwalya , Telhara Kala , Thithali .
The native language of Gahai is Hindi,Urdu and most of the village people speak Hindi,Urdu. Gahai people use Hindi,Urdu language for communication.
Gahai village is located in the UTC 5.30 time zone and it follows indian standard time(IST). Gahai sun rise time varies -11 minutes from IST. The vehicle driving side in Gahai is left, all vehicles should take left side during driving. Gahai people are using its national currency which is Indian Rupee and its internationl currency code is INR. Gahai phones and mobiles can be accesed by adding the indian country dialing code +91 from abroad. Gahai people are following the dd/mm/yyyy date format in day-to-day life. Gahai domain name extension( cTLD) is .in .