Atomic and Molecular Physics laboratory is a laboratory for research in the field of mass spectrometry. Various advanced and state of the art instruments are developed in house and a capacity is built to design develop, test and use such instruments. A tunable nano second laser is used for studying photo dissociation of molecules of astronomical and biological interest using ion-neutral coincidence setup. In a separate instrument an electron gun is used to ionise molecules of interest and measure their resulting mass spectra as a function of the emitted electron energy.