- Country
- India
- States and union territories
- Andaman and Nicobar Islands Bihar Jharkhand Odisha West Bengal
- Other states sometimes included
- Chhattisgarh
- Largest city
- Kolkata
- Most populous cities 2011
- Bihar: Patna Gaya Bhagalpur Muzaffarpur Bihar Sharif /Udantapuri Jharkhand: Jamshedpur Dhanbad Ranchi Bokaro Steel City Deoghar Odisha: Bhubaneswar Cuttack Rourkela Berhampur Sambalpur West Bengal: Kolkata Asansol Siliguri Durgapur Bardhaman
- Total
- 418,323 km (161,515 sq mi)
- Density
- 542.464/km (1,404.98/sq mi)
- Time zone
- IST ( UTC+5:30 )
- Official languages
- Bengali Bhojpuri English Hindi Maithili Nepali Odia Santali Urdu Nagpuri