Hi
Yes the MRI report says that you have a complete tear of the ACL.
ACL is one of the stabilizers of the knee. Without the ACL, the knee will become unstable and the other parts of the knee will undergo more pressure/wear and tear. So it is important to get a surgery... especially at your young age. Had you been above 45-50 years of age, surgery may not have been compulsory. But right now, it is very essential to get it done.
If you still don't want surgery, you will need to follow a few precautions to ensure that the knee does not undergo more wear and tear. These are:
*Avoid sitting/sleeping on the floor.
*Avoid using stairs as much as possible. Use a lift whenever you can.
*Avoid using an Indian Toilet. Use a Western style toilet or a foldable toilet chair.
*Do the exercise shown in the video below:
https://m.youtube.com/watch?v=bE3xkOIekiU&t=3s
Lastly, PRP treatment will not help in your case because the ACL is torn completely. So don't waate your time and money over it.
Next Steps
Please contact an Orthopaedic surgeon to get your surgery done.