Yes you may start physiotherapy treatment

Chiropractic adjustment will help. Quadriceps exercise Hams Stretching- lie straight, take the leg up, pull the feet towards yourself, with a elastic tube or normal belt. repeat 10 times, twice a day. Sports Taping- stretch the tape from both ends and apply on the affected area Contrast Fomentation (Hot and Cold). Chiropractic physiotherapy

Well.. Your MRI report siggest 80% chances to go for surgery.. Physiotherapy treatment for complete knee rehabilitation is anyways needed wheather you go for surgery or not. You should start rehab with a proffessional.

You would require physiotherapy ,I have already recently closed a same case like yours,she didn't required surgery at all.Surgery would the last and final option ,if at all required after physiotherapy sessions.

Yes ofcourse….u will be requiring complete knee rehabilitation from a certified physiotherapist

You should consult an Orthopaedic surgeon for complete assessment and treatment.

Yes surgery is needed in your case if it's complete tear 

Due to tear u need surgery

You have to go for surgery after that physiotherapy

Physiotherapy will help you in regulating pain but if its a complete tear then you need to go for surgery. Consult with orthopedician for proper advice.

Yes for pain physio will help.  But in future you might need to go for surgery