Dear Vijay,
It is a simple letter to be forwarded to HR saying that so and so working as _______________ in our department is abstaining from his / her duties with out proper permission or intimation effective from ______________ till date. Due to his absence the works / production schedules are getting affected hence request you take necessary action.
This is for your information and necessary action pl.,
Pl. attach a xerox copy of his / her attendance card / register.
Regards - kameswarao