18th April 2019 From India, Kannur
You can warn the employee those who are working under you and you are the authority to sanction leave.
In other case, HR can only issue the warning letter after receiving complaint from the DH of the employee if one is absenting from duty.
19th April 2019 From India, Mumbai
Please let me know what is the set up and the reporting arrangement in your organisation. Depending on this only anything shall be appropriate to be suggested to you. Drafting a mail or a circular should be such that what administrative arrangement in vogue there.
20th April 2019 From India, Bangalore