Sir,i M Having Foot Drop Problem For Past 6 Years.i

Sir,i m having foot drop problem for past 6 years.i m nt having any pain in my leg,but i m nt able to lift my right knee up sir.i can able to move my knee down and side ways.pls advice me sir..i m in tamilnadu state sir.pls tell me the specialist dr. near to my homedown sir..