During the biometric verification, the skin fell off from the friend's hand when the exam supervisor sprayed a sanitiser on it on August 22.
On Wednesday, the police arrested both the candidates Manish Kumar and Rajyaguru Gupta for cheating and forgery who are in their mid-20s and are the natives of Munger district in Bihar.
The Recruitment Test for Railway 'D' group vacancies was held at a building in the Laxmipura area in which more than 600 candidates appeared.
