Background: Om is having immense importance in Hindu tradition as well as in all yoga techniques. Every yoga technique begins with pronouncing the Om. The three letters A, U, and M combined together to form the word Om and it orderly represents the past, present, and future. Aim and Objectives: The study aimed to provide further evidence for beneficial effects of Om chanting on stress and cognitive functions in young adults with type D personality. Materials and Methods: A total of 30 young adults with type D personality will be included in the present study. Participants will be screened for type D personality using DS 14 questionnaire. Om chanting was performed once in a day at 8:00 am daily. Stress levels were assessed using perceived stress scale. Spatial and verbal memory was assessed using spatial and verbal memory test. Results: There was significant improvement in the levels of cognitive functions that are spatial memory and verbal memory scores in the participants of intervention group when compared to control group. There was significant decline in the stress scores in the participants in the intervention group when compared with control group. Conclusion: The study explains beneficial effects of Om chanting. More works have to be undertaken to recommend implementation of Om chanting in daily lifestyle.