The present study was aimed at studying the impact of stress on mental health among youth with reference to Madhubani district of North Bihar, India. This study was conducted to assess the levels of mental health among youth and the relationship of the mental health with stress. Total sample of the study consisted of one hundred (N=100) youth comprising male (n=50) and female (n=50) which were randomly selected from different areas of locality of Madhubani town – a well – known town of North Bihar. It is generally expected that the most affected group in our own nation - India is youth especially in North Bihar region of Bihar State due to day today increasing unemployment. Thus, they have been found to spend most of the time with their friends and stay outside the home due to unemployment. They were bound to stay at home most of the time but no engagement with friends and with other social circles in the mean time. Hence, to achieve the target of the study, the intention of the present researchers was to study the levels of mental health in relation to stress of the particular group by using questionnaires schedules of Mental Health Scale developed by Jagdish and Srivastava (1983) and Perceived Stress Scale developed by Naik and Khan (2018) were used to collect the data from youths of Madhubani town. After collecting the information on the items of the schedules, the individual scores were obtained as per norms and procedures of the scales as given by authors and were given statistical treatment. Finally obtained results had shown that mental health and perceived stress variables are negatively correlated with each other among youth. Moreover, significant difference has been found on different dimensions of mental health and in total as well between the group of male and female youth belonging to Madhubani district. It is very interesting to note that male youth had scored higher degree on mental health schedule than female youth. Thus, the discrepancy of the obtained results has been discussed in detail by giving the probable reasons in the light of the activities prevailing now in Madhubani district of North Bihar, India.