  We report on the electrical transport, magnetotransport, and magnetic
properties studies on the transition metal dichalcogenides VSe$_2$ and VTe$_2$
and draw a comprehensive comparison between them. We observe Kondo effect in
both systems induced by the exchange interaction between localized moments and
conduction electrons at low temperature, resulting into resistance upturn at 6
K for VSe$_2$ and 17 K for VTe$_2$. From the field dependent resistance
measurements we find that the data is fitted best with modified Hamann equation
corrected by the quantum Brillouin function for VSe$_2$, while the data is
fitted best with modified Hamann equation corrected by the classical Langevin
function for VTe$_2$. Interestingly, we observe a contrasting magnetoresistance
(MR) property between these systems across the Kondo temperature. That means,
negative MR is found in both systems in the Kondo state. In the normal state MR
is positive for VSe$_2$, while it is negligible for VTe$_2$. In addition, both
systems show weak ferromagnetism at low temperature due to intercalated V
atoms.
