A Quasi Experimental Study to Assess the Effectiveness of Chromotherapy on Level of Stress During Pregnancy Among High Risk Primigravida Mother At Selected Hospital of Delhi for the partial fulfilment of the equirement for the degree of master of nyrsing at Nightingale Institute of Nursing, under Chaudhary Charan Singh University of Meerut, Uttar Pradesh the year 2019-2020. This study was conducted on 40 high risk primigravida mother having stress during pregnancy at hindu rao hospital , Delhi. The objective of the study was to evaluate the effectiveness of chromotherapy on the level of stress during pregnancy among high risk primigravida mother in experimental group. The research approach for the study was quantitative in nature. The research design used was quasi experimental pre-test post-test research design. The sample was selected by purposive sampling technique. Descriptive and inferential statistics were used for the data analysis. The mean post test of high risk primigravida mother is 24.4 in experimental group is less than the control group mean post test is 58.35.The obtained mean difference was found to be statistically significant at 0.05 level. The calculated unpaired “t” value is 14.02 at 0.05 level of significance which is higher than the table value at df (38). The fisher exact test value obtained to find out association between post score of high risk primigravida mother receiving chromotherapy with demographic variable, on computation it was found that there was no significant association between post test score of high risk primigravida mother in experimental group with demographic variables at 0.05 level of significance. This study concluded that administration of chromotherapy was effective in reducing level of stress during pregnancy among high risk primigravida mother at selected hospital of Delhi.