Aiming to end possibility of impersonation in the JEE (Main) examination, candidates are likely to be marked by an Aadhaar-linked biometric attendance system from next year. <br/><br/>Official sources said in New Delhi that keeping in view some cases of impersonation detected every year during the examination, the CBSE, which conducts the examination, has decided to use the Aadhaar-based biometric attendance machine at the examination centres.<br/><br/>Joint Admission Board (JAB), a high-level body which oversees the exam, had reviewed the system in a meeting in New Delhi yesterday.<br/><br/>However, there will be some relaxation for candidates from some areas of the states like J&K, Assam and Meghalaya where the permeation of Aadhaar card is not upto the same level as in other states.