Degenerative disc disease with bilateral neural foraminal narrowing with spinal canal narrowing and spinal cord impingement at l2-l3(9mm) with neurofibroma-will these conditions be treated without any surgry?

Tricky: first, if there are signs of nerve damage (strength, sensation, changes in control of bowel or bladder) then surgery is indicated. Then.... 1-10% of the population has lumbar disk disease and surgery is not generally done and doesn't have that good of an effect when it is. Neurofibroma in spine complicates things. A Lot. It's a growing benign tumor and surgery might spread it. Radiation therapy.