Hey shivika!
You don't need to worry as while registration for counselling , you only need to enter the application number in the form which you already have. But note that , at the time of reporting at the centre , it is mandatory for you to have hard copy of your caste certificate to claim the seat.
To predict the list of colleges you can get on the basis of your UPSEE rank , use UPSEE college predictor tool:
https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

Best regards:)

Uttar Pradesh Combined Entrance Examination

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