A research was carried out on the extensive work on Mental Health of Workers working at open cast and underground mines in India. This study is particularly converged on the oldest mine of Rajasthan, located in the Udaipur District. The instruments selected for the research are scientifically justified. This topic is of paramount importance in present day mining activity. Physical and mental health of works is momentous. The scales of the mental health study include - Job satisfaction, Job anxiety, Death anxiety, Emotional maturity. All the samples have been carefully taken from inside and outside the mines. The samples contained several skilled workers and supervisors from different mines of Hindustan Zinc Ltd. Udaipur, Located at Zawar Mines, Rajpura Dariba Mines and Maton Mines. The samples contained 200 supervisors and workers, out of which. 100 were working inside the mine, and the other 100 were working outside the mine. Standardized psychological tests were carries out for data analysis, the data related mostly to the: mean, S.D.C.V.S.E., and Co. relation and Multiple Regression. The design of research, sample categories \, size and statistical datas are appropriate. The analysis of results and conclusion from the results are liable for presentation. The findings have been critically evaluated with those of the previous studies made in this research, area. In implications of the conclusion that mental health maybe a significant risk factor for the occurrence of death anxiety is not proper. As such, there is a need to know the specific feature of mental health that carry the increased risk. The outcome of the data is grossly useful for expending mind activity in present scenario, not future or past scenarios and can only be used in hypothetical sense.