This work which is in the form of a book is an investigation carried out by the author attempted in order to explore the concept of emotional intelligence and teacher effectiveness. In recent years Emotional Intelligence and teacher effectiveness has been a topic of argument in the field of education. This study aimed to find the relationship between Emotional Intelligence and teacher effectiveness towards primary school teachers. Emotional intelligence is an important element in enhancing individual s ability and skills in communication and interpersonal relations. The tools and strategies help teachers for teaching content at various stages from primary, secondary & higher secondary level. The results showed that both emotional intelligence and teacher effectiveness of primary school teachers have average level. The results showed that there was no significant relationship between Emotional Intelligence and teacher effectiveness of primary school teachers. The influence of demographic variables on emotional intelligence and teacher effectiveness is also explored. This kind of study becomes essential because very less work has taken place on teacher effectiveness.