C :: Unable To Retrieve String As Array Variable

I am trying to read a tab delimited file containing 8 columns and store each element of the column as an 1-dimensional array. Though the program prints the strings correctly as in the commented printf but it doesn't give me first_col[0] value and so on. My code is as follows:

Code:

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main() {
FILE *int_file1;
int BUF = 1024;

[Code]...

The inputfile test.txt has the following elements:

34932 13854 13854 2012-01-07
172098 49418 53269 2012-01-07
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