Honda 2 Wheelers India — Honda unicorn bs6 wobbling

I purchased Honda unicorn bs6 1 year back from prakash Honda guduvanchery. Now I have crossed 15000 km. After i crossed 5000 km I started experiencing strange wobbling issue that happens suddenly when I ride through pathhole or bumb. I tried explaining this to my service centre changed cone set ( paid), checked fork allignment only to experience the same. I really don't know what to do. I don't have good riding and my last option is to sell this ### to get rid of this problem.