The accused identified as Nitesh, who runs a computer centre in Sonipat, was arrested by the Special Investigation Team which is investigating the matter, Deputy Superintendent of Police Dinesh Yadav said.
Nitesh told police that he along with his two maternal uncles, who are JBT teachers, and one of their friends leaked the paper on an especially formed WhatsApp chat group and charged Rs two lakh from each candidate, he said.
Pawan and Ajay, Nitesh's uncle, were friends with one teacher Rajendra Randhawa who was also HTET examination centre head of Indian Model Senior Secondary School in Sonipat, Yadav said.
Randhawa provided the question paper before the exam started to Pawan and Ajay who after finding the answers gave it to Nitesh who in turn along with his friend Gaurav posted them in a WhatsApp group - Chandni Chowk - having 55 candidates as members, he added.
More From This Section
Five mobile phones, one laptop and dozens of HTET exam admit cards were also recovered from the possession of the accused, the DSP said, adding that Nitesh would be presented in court tomorrow.
On November 14, the Haryana Teachers Eligibility Test (HTET) Level 3 (PGT) examination was cancelled in the state on suspicion of paper leak.
Secretary, Haryana School Education Board, Bhiwani, Pankaj Kumar, had said the next date for the examination would be announced soon.
Kumar had said that information was received through the Jind district administration that documents related to the question paper were recovered from an "external person while the examination was going on".