Development in medical intervention has significantly decreased the mortality rates for children with complex congenital heart disease (CHD) but among these survivors with complex heart disease there occurs a unique pattern of neuro-developmental and neuropsychology impairment characterized social interaction impairment, impulsive Behavior, and impaired executive functions. Presence of behavioral problem is found significantly high in pediatric population with chronic illness than children with absence of chronic illness. The sample of 200 children with congenital heart defect was selected between age 4-8 years using multistage stratified sampling. The childhood psychopathology measurement schedule (CPMS) by Dr. Savitha Malhotra was used for assessing Behavioral problems present in children with CHD. “Pre- Post experimental design was used to investigate the study and the results were statistically analyzed using paired T test. The result revealed that the effectiveness of intervention program to retrain Behavior showed high significance. With increased survival rates, the aim of the intervention and research based on clinical practices gets a shift from short term medical assessment to long term assessment and intervention of morbidity