Why I am getting this issue

Nope, you're getting garbage, because, in the printf calls there are two %d format specifiers while only one value (*(&k)+*(&l)) is provided.
Try

#include <stdio.h>
  
int main()
{
  int  k=2, l=5;

  printf("add of k+l is %d\n",*(&k)+*(&l));

  return 0;
}

Note, you could have made it simpler

#include <stdio.h>
  
int main()
{
  int  k=2, l=5;

  printf("add of k+l is %d\n", k+l);

  return 0;
}