  We have grown the single crystal of PrRhAl$_4$Si$_2$, which crystallizes in
the tetragonal crystal structure. From the low temperature physical property
measurements like, magnetic susceptibility, magnetization, heat capacity and
electrical resistivity, we found that this compound does not show any magnetic
ordering down to 70~mK. Our crystal field calculations on the magnetic
susceptibility and specific heat measurements reveal that the 9-fold degenerate
$(2J+1)$ levels of Pr atom in PrRhAl$_4$Si$_2$, splits into 7 levels, with a
singlet ground state and a well separated excited doublet state at 123~K, with
a overall level splitting energy of 320~K.
