The pain is mostly because of meniscus injury only. Since it is one year old now, there is a possibility that tear might have further increased..
Next Steps
I will suggest you to use a knee support, get a fresh MRI scan to understand the current situation of the injury. Better option will be to go for surgery. For now, you can take analgesic tablet, apply analgesic ointment, take
calcium and vit d supplement..
Health Tips
Avoid sitting down, avoid heavy work, avoid Indian toilet..