The estimation was based upon measurement of absorbance of tablet in distilled water at λmax 351nm for Methylcobalamin and 405nm for Gabapentin after reacting with 0.2% ninhydrine in N, N’- dimethylformamide. Beer Lambert’s law obeyed over a concentration range of 50-300µg/ml for Gabapentin (r2= 0.9949) & 1-7µg/ml for Methylcobalamin (r2 = 0.9993). The mean results of estimation in tablet were 100.43±0.15% & 100.48±0.18% by standard curve method and 100.58±0.17% and 102.31±1.25% by double point standardization of the label claim for Gabapentin & Methylcobalamin respectively. The method has been validated with respect to linearity, range, accuracy & precision.