What Is The Treatment For Degenerative Disc Disease?

Hi! My father is started suffering from pain in the hip and when got an MRI done, the report reflected mild degenerative disk disease and mild degenerative changes of lumbar spine. We have currently on medication and physiotherapy at my home town (Meerut, UP). I would like to take a second opinion on the course of treatment, can you please suggest who would be the best Doctor in this field in Bangalore.
Thanks, Ashutosh