Variation in best-fit value of the exponent 2/n as a function of radius is obtained when our results for stellar density distribution are fitted with a distribution of type sech^2/n for a range of Δz = 200 pc. The value of 2/n is lower than 2 (or n >  1) for R <  5 kpc and greater than 2 (or n <  1) beyond that, i.e., in the outer disk region, which is fully dominated by the dark matter halo.