Biological active tridentate Schiff base ligand derived from 2-amino, 4-methyl phenol with indole 3-aldehyde and their Ti(IV), Zr(IV), Cd(II) and Hg(II) metal chelates have been synthesized and characterized on the basis of IR, Elemental analysis, Electronic spectral data, Magnetic measurement, Conductance, 1H NMR and X-ray diffraction method. The Schiff base and its metal complexes have been tested for their antibacterial as well as antifungal activity using disc diffusion methods and the results discussed.