  We present the comaprative study of semileptonic and leptonic decays of
D_{s},D^{\pm} and D^0 meson (D\rightarrowM
l_{{\alpha}}^+l_{{\beta}}^-,D\rightarrowl_{{\alpha}}^+l_{{\beta}}^-,D\rightarrowl_{{\alpha}}^+v_{{\alpha}};{\alpha},{\beta}=e,{\mu})
within the framework of R-parity violating (R_{p}) Minimal Supersymmetric
Standard Model (MSSM). The comparison shows that combination and product
couplings ({\lambda}_{{\beta}i{\alpha}}{\lambda}_{ijq}^{'\ast} or
{\lambda}_{{\beta}qk}'{\lambda}_{{\alpha}jk}^{'\ast}) contribution to the
branching fractions of the said processes rocesses(under consideration) is
consistent or comparable to the experimental measurements in most of the cases.
However, there exists some cases, where these contributions are suppressed but
still comparable to that of standard model.
