Single crystal of L-Asparaginium bromide Monohydrate (LABMH) was grown by slow evaporation solution growth technique. Single Crystal X-ray diffraction analysis was employed to identify the cell parameter. The powder X-ray diffraction showed a high degree of crystallinity of the grown crystal. The EDAX gave the elemental composition of grown crystal. The presence of various functional groups was identified from FTIR spectral analysis. UV -visible spectrum study was assessed the optical quality and also the band gap energy of the grown crystal was evaluated. The optical and mechanical behavior of the grown crystal was studied by involving photoluminescence and Vicker’s Micro hardness study.