Question

write an application for 19 days due to the death of grandmother

Answer 1

if it is for leave and to give in school then here Is it.
to
the principal
xxxxxx school tangla asaam
sub leave of absence
(through the class teacher)
I beg most respectfully to state that I couldn't attend my classes from 1 may 2018 to 19 may as my grandmother passed away.

therefore I request you to grant me leave of absence for the above mentioned nineteenth days only
yours faithfully
name class section roll no etc
hope it helps you