AHMEDABAD : Identified 'beneficiaries' are undergoing dummy vaccination at various centres in Gandhinagar and Rajkot districts of Gujarat on the second day of the Covid-19 vaccination dry run on Tuesday, officials said.The two-day end-to-end dry run was being carried out to test the laid out mechanisms for Covid-19 vaccination and to provide insights into any gaps to be addressed before the commencement of the actual vaccination drive.Gujarat is one of the four states chosen by the Central government to conduct the mock Covid-19 vaccination drive.Health workers are among the first 'beneficiaries' identified for the mock vaccination drive being conducted at four health centres in Gandhinagar city.Explaining the procedure, an official said a.