  We have investigated the ternary noncentrosymmetric superconductors TaXSi
(X=Re, Ru) by magnetization, resistivity, and specific heat measurements. The
samples crystallize in orthorhombic TiFeSi structure having superconducting
transition Tc = 5.32 K and 3.91 K, for TaReSi and TaRuSi respectively. Specific
heat measurements indicated an s-wave nature of both materials with a
moderately coupled nature. However, a low value of specific heat jump and the
concave nature of the upper critical field suggests a nontrivial
superconducting gap.
