C: using srand() and rand() still prints the same sequence everytime the function is called

I have the code below:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void random_num_generator(int *arr_ptr, int num_of_elements, int start_val, int end_val){
    srandom(time(NULL));    

    int i;
    for(i = 0; i < num_of_elements; i++){
        *(arr_ptr+i) = start_val + random()/(RAND_MAX / (end_val - start_val) + 1);
    }
}

int main(){
    int arr_size = 10;

    int *test1 = (int*)malloc(arr_size*sizeof(int));
    int *test2 = (int*)malloc(arr_size*sizeof(int));

    random_num_generator(test1, arr_size, 0, 50);
    random_num_generator(test2, arr_size, 0, 50);

    int i;
    for(i = 0; i < arr_size; i++){
        printf("%d ",*(test1+i));
    }
    printf("\n");

    for(i = 0; i < arr_size; i++){
        printf("%d ",*(test2+i));
    }
        printf("\n");

        free(test1);
        free(test2);

    return 0;
}

So, the problem is whenever I call call the random_num_generator() function, it should give me different sequences of numbers. But, here in this code I call it two times and it gives me the same exact set of sequence both times.

RUN 1 OUTPUT

24 18 7 3 21 10 14 23 29 24
24 18 7 3 21 10 14 23 29 24

RUN 2 OUTPUT

30 22 13 23 23 7 27 37 16 39
30 22 13 23 23 7 27 37 16 39

As you can see, the program only generates a new sequence of random characters whenever I terminate the program and re-run it.

Can someone please explain this to me. Thank you.