Transition metal complexes of Cu(II), Co(II), Ni(II), Mn(II) and Zn(II) with azodyes of novel heterocyclic pyrazole derived from 3-methyl-1-phenylpyrazole and diazonium salt of chloroaniline have been synthesized and characterized based on elemental analysis, mass, IR,H1 NMR, magnetic and thermogravimetric studies.