The examinee, Vikas Gupta, was yesterday caught cheating at a Barra-located exam centre by the principal of the school where the exam was being conducted, they said.
He was seeking answers from a solver in Allahabad with the help of a camera and mobile device placed discreetly in his shirt.
On a complaint lodged by the school's principal in this regard, police yesterday arrested Gupta and questioned him.
Gupta told police he had a deal with Monu, a resident of Allahabad, that he would help him in clearing the entrance exam.