Mixed ligand complexes of Ru (III) and Ir (III) with 2-carboxaldehyde pyrrolyl - pyrazine carboxylic hydrazone (cppch)/ 2-acetyl pyridyl-pyrazine carboxylic hydrazone (apph) as primary and thiosalicylic acid (TSA) / 2-amino thiophenol (atp) as secondary ligand have been synthesised and characterised on the basis of analytical, conductance, magnetic and spectral studies., Analytical data suggested l:l:l (M-L/L'-L"H/L"'H) stoichiometry of the complexes [Where M=Ru(III), Ir (III), L = cppch, L' - apph, L"H = TSA and L" 'H - atp]. The molar conductance data (4.2 -6.8 Ohm-1 cm2 mol -1) of the complexes show their non-electrolytic nature. Reflectance spectra suggested octahedral geometry of the complexes. Ir spectra revealed the bidentate nature of the ligands.