Mr Sanjay dsouza,
Your back pain
may or may not be due to the disc bulge seen on your MRI
scan. But the leg pain that you describe, running down till the ankle especially on walking, may be due to a nerve root compression
caused by the disc bulge. It will be useful to undergo physiotherapy
and back training and also to stop playing/ jumping/ lifting weights for a week or so till the pain settles down. It is wise to be in consultation with your treating doctor and discuss with him before you start any physiotherapy program.
Get well soon.