Proddatur One Town police arrested an invigilator, Baba Khaleelulla, from his house in Power House street in Proddatur town in connection with missing maths 1-B answer sheet of an Intermediate first year student Siva Pavani of Abhyas Junior College on March 13.

He was arrested after he confessed that the girl student handed over the answer sheet before leaving the examination hall, police said. College principal and chief superintendent had lodged a complaint with the police as only 24 answer sheets were available, though 25 students wrote the maths 1-B exam in a room.

Proddatur One Town Circle Inspector Vijayabhaskar Reddy visited the college and inquired with Baba Khaleelulla, two other invigilators, student Siva Pavani and 24 other students who appeared for the examination.