Ms. Puja Singh student of 3rd year B.Tech, School of Electrical Engineering, published a research paper in IEEE Fourth International Conference on “Emerging Research in Electronics and Computer Science Technology ” ICERECT – 2022 on 26th -28th December 2022. The objective of the conference was to provide a platform to the researchers and practitioners from both academia as well as industry to meet and share cutting-edge development in the related field. The paper titled as “Optimization of Cascaded H-Bridge Multi-Level Inverter using Particle Swarm Optimization Technique for Reduction of THD”.The paper presents seven level single phase of cascaded H-Bridge multilevel inverter with the help of particle Swarm Optimization (PSO) Algorithm. The purpose to choose the PSO Algorithm is its simplicity and efficiency. This technique is helpful in reducing the Total harmonic distortion and improves the power quality of the system.