Hello Sir This Is Sagar From India , I Had

Hello sir This is sagar from India , I had a injury on knee 3 months back in starting I just check through x ray there is no break than after 2 months pain n swelling doesn't gone so I done a MRI where report say I have a ACL tear and it needs a surgery. Now what to do Is can cure by exercise as some Dr say or I have to do surgery.
As per my symptoms there is a sound like Internally I feel when I put my hands on knee n move my hands. What to do