It looks like there is some misunderstanding regarding opt and f1 status. I'd like to

clear that out.

Even when OPT is approved the person is in F1 Status and need to maintain the status

as described for F1 status.

IF there is still time for your graduation (though you have applied for OPT) I would

consider it safe to travel. You'd require to get new F1 Visa in KTM though. And if

your grades are GOOD and if you have never been status problem, I believe you will get

the Visa.

Just a thought, its you who have to make the decision.