In reply to Soumyajit Ghosh:
You need to be using a join_none instead of join. Otherwise it gets stuck waiting for a bit to change that never does.
module tb#(int T=8);
bit [8:0] abc;
initial
for(int i=0; i<T; i++)
fork
automatic int k = i;
begin
wait(abc[k] == 1'b1);
$display(i,,k,,,$time);
end
join_none
initial
begin
abc[5] = 1'b1;
#10 abc[2] = 1'b1;
abc[7] = 1'b1;
end
endmodule
