Hello Aspirant.

Hope you are doing well.

Really sorry to say but you can't register yourself in the second round of counselling directly if you haven't applied for it before. You'll have to apply in the counselling from starting if you wanna take part in that. But don't panic and try contacting the higher authorities of the counselling process through the contact number or email id that they have provided on their site and tell them about your problem and wait for their response they'll try as much as they can to solve your query so please stay calm and be patient.

GOOD LUCK, STAY MOTIVATED AND HOPE THIS HELPS.

Thankyou.