Shri Roshan Kushwaha, ‘I.A.S’
- Designation: District Collector -cum- District Magistrate, Samastipur
- Email: dm-samastipur[dot]bih[at]nic[dot]in
- Phone: 06274-222300
- Address: Office of District Collector -cum- District Magistrate, First Floor, Collectorate, Samastipur
- Fax No: 06274-222058