hey there,

It will not a problem if you didn't uploaded aadhar card during NEET Counselling Registration  Because while filling the neet application form you  have to enter your aadhar card number only and not to upload your aadhar card.

However if you forgot to upload the income certificate even if you have entered the annual income amount during application then after admission you can go through the scholarship schemes offered by your college and apply later also  can.  You will receive fee reimbursement accordingly.

hope this helps you