In reply to Anjali:
Not sure why you used $getc/$ungetc, snd you should be using $sscanf instead of $fscanf.
Also, it helps to put your question into a small complete example, like this:
module top;
int fd;
string c, str, ant;
int num;
initial begin
if ((fd=$fopen("in.csv", "r")) != 0)
while($fgets(str,fd) != 0) begin
if (str.match("ANT")) begin
// else: !if((fd=$fopen("in.csv", "r")) != 0)$sscanf(str, "%s %d", ant, num);
$display("%s :VALUE: %d", ant, num);
end
end
end
endmodule