Almost surely, e-mail is the best way to be in touch with me.

• E-mail addresses: biswa087 (at) umn (dot) edu
  ratul (dot) biswas (at) northwestern (dot) edu

I check both mailboxes regularly, so feel free to email me at either.

• Office: Room 3535

• Mailing address: 875 North Michigan Avenue,
  Suite 3500,
  Chicago, Illinois 60611

Additionally, I may be found during Fall 2026 at

• Office: Room 301

• Address: Department of Mathematics,
  Lunt Hall,
  2033 Sheridan Road,
  Evanston, Illinois 60208