The 'Mo Bus' service, a public bus transportation system, was launched by the Odisha government. It gained international recognition for its efficiency, affordability, and use of technology, earning the United Nations Public Service Award.
Telangana (option 1), New Delhi (option 2), and West Bengal (option 3) have their own bus services but were not the recipients of this award for 'Mo Bus'.
Thus, the correct answer is (4) Odisha.