Hi

To apply for admissions in Aligarh Muslim University, you need to fill the application form online through the official website. 
The forms, admission guide, and instructions for application are available on the website and link for the same is - https://www.amucontrollerexams.com/
For the direct link of application form, you can use the following link - https://dt.amucontrollerexams.com/oaps/user
Before applying, make sure you fulfill the eligibility criteria. Remember merely filling the application does not guarantee admission. You have to qualify the entrance also.
Please go through the instructions carefully before applying 

Hope this helps
Thanks!