A CBI summons to senior IAS officer Bishnupada Sethi in connection with a Rs 10 lakh bribery case triggered a political slugfest in Odisha on Sunday.

The Central Bureau of Investigation (CBI) on December 10 issued a summons to Sethi, the principal secretary of ST&SC Development, Minorities and Backward Classes Welfare Department. He also holds additional charge as principal secretary of Social Security and Empowerment of Persons with Disabilities Department.

The CBI on Saturday interrogated Sethi’s three drivers in connection with the case. Sethi was summoned to join the investigation at CBI’s Bhubaneswar office on December 11, sources said, adding that the bureaucrat sought more time through his lawyers.