Dear Karhikeyan Rangasamy, 

the CV response curve is characterized by its anodic and cathodic peak currents, which is observed for most electroactive species, but not in non-electroactive species

Another thing for different scan rate in non- electroactive species there is no shift in the cathodic and anodis potentials 

Many groups are actively working on developing electrochemical sensors for nonelectroactive species. Many of these sensors work using enzyme-based methods. I'm fortunate enough to study electroactive species, so I don't  know very much about them, but if I were you, I'd incorporate search terms like "electrochemical biosensor" or "enzyme-linked biosensor" while searching for your analyte of interest.

For a chemically active species, a chemical-electrochemical-chemical sequence of interaction may provide the way out for cyclic voltammetric determination of a non-electrochemically active species. Since the question is not elaborated well, you could try Quinone/Hydroquinone Redox for the estimation.

actually i tried to electrochemical determination of gamma amino butyric  acid (GABA) which is not electroactive species. 

how i electgrochemically determine that analyte