The present study is about the self-confidence and mental health in relation to their emotional intelligence of college students of Delhi. The following hypothesis were framed1. College students do not differ in their levels of self-confidence.2. College students do not differ in their levels of mental health.3. College students do not differ in their levels of emotional intelligence.4. The following variables do not make significant difference in the self- confidence of College students.(a) Gender (b) Course of study (c) Locality 5. The following variables do not make significant difference in the mental health of College students.(a) Gender (b) Course of study (c) Locality 6. The following variables do not make significant difference in the emotional intelligence of College students.(a) Gender (b) Course of study (c) Locality 7. There is no significant relationship between self-confidence and mental health of College students. 8. The following variables do not make significant difference in the self- confidence and mental health of College students.(a) Gender (b) Course of study (c) Locality. 9. There is no significant relationship between self-confidence and emotional intelligence of College students. 10. The following variables do not make significant influence on the relationship between self-confidence and emotional intelligence of College students. (a) Gender (b) Course of study (c) Locality. 11. There is no significant relationship between mental health and emotional intelligence of College students. 12. The following variables do not make significant influence on the relationship between mental health and emotional intelligence of College students. (a) Gender (b) Course of study (c) Locality. 13. There is no significant relationship among self-confidence, mental health and emotional intelligence of College students.Survey method was used for this study. The sample for the study was selected by stratified random sampling method. The researcher used lottery system method to select the College of Professional and Non-Professional by simple random technique to collect the data. In this case researcher used a set of 30 tickets. The tickets were thoroughly mixed up and then 20 tickets were used to select 20 College of Professional and Non-Professional for the sampling purpose from Delhi. From selected Colleges 30 students from the each College were taken as sample by stratified random sampling method. So the sample consisted of 300 students. The conclusion drawn is Knowledge of self-confidence and mental health in relation to emotional intelligence of College students is a necessity for a developing country. Consequently, additional research is needed to gain not only theoretical consensus but also clarity regarding the most appropriate measurement strategy. This piece of research is a humble effort in testing the application of concept of self-confidence, mental health and emotional intelligence in the field of education.