In reply to dave_59:
Hi Dave,
This is how I have written the bind statement.
Right now accessing only one signal for testing purpose.
bind in2_module : tb_top.design_top.in1_module.in2_module probe_intf m1(internal_signal_1);
bind in3_module : tb_top.design_top.in1_module.in2_module.in3_module probe_intf m2(internal_signal_2);
I will check the tool version as well.
Thanks.
Karan