Hello aspirant,

I hope you're doing well as for your query,

- It might be a technical issue on their side.

- If you have the payment receipt or the transaction ID.

- Write a mail to official email or the help desk mail of the AIIMS.

- Write about your issue with fee payment, and attach the payment receipt or the transaction ID and the image showing your account hasn't completed STEP - 4, and is still asks to "make payment".

- Wait for the response, if the problem is on their side, they will fix it.

I hope it helps.

Have a nice day.