Hello aspirant,

You can take leave for exams. But they may not give one week leave you have to adjust with the situation. Atleast try to get leave on the day of exam. Now a days rotational shift jobs are trending. In this pandemic most of the employees are doing Work From Home. So shift doesn't matter much in this case. If it is work from office job then day shift is preferred but for night shift many companies are providing cab facilities so need not worry.

Hope this information helped you.

Best of Luck!!