In one particular company whose office is situated in city commercial area and is covered by Shop and Establishment Act. For marking attendace a registered is maintained where all the employees mark their attendance. The company has moved to biometric system of marking attendance. And a deviced is installed where all employees are supposed to mark their attendace. Now is it necessary for employees to mark attendance both on biometric device as well as registere? Is always necessary to have manual registers for marking attendance?The answer to this question may be given after giving due regard to applicability of relevant provisions of the applicable Acts such as PF Act and Industrial Dispute Act etc.