As you haven't mentioned which log in ID you want, I am giving you the general solution about what to do in this situation.
After completing any registration process candidates always get a message of successfully registration in the registered email id and also in registered mobile number. That message contains your log in ID and password.
So, check the inbox of your registered email ID or phone number. You will definitely find it there.
You didn't mentioned the state you have been appearing for counselling. Now if you lost the ID , I didn't find any way by which you can recall it. Just see if there is a option of forgot ID click on it and do the steps instructed so that you can retrieve your ID. You can also check your email if any emails were sent regarding the ID before and you can collect your ID from there too.
This is all that I can think about.
I hope my answer helps you. All the very best for your future endeavors!