Background: ADHD is one of the most common disorders seen in children and the presenting complaint of the parents is not able to manage the child. ADHD is highly co-morbid with various psychiatric illnesses which further add to diagnostic and management difficulties.

Method: The case records of Child Guidance Clinic (CGC) (2012-2017) of Postgraduate Institute of Medical Sciences (PGIMS) Rohtak, Haryana were manually screened to collect information about children with a diagnosis of ADHD. Relevant details were noted and data were analyzed.

Results: 436 children were diagnosed with ADHD. Most common age of presentation was 8 years (n=68), with majority of children being males (80%) presenting between 5-7 years of age (44.5%) and belonging to urban background (n=253, 57.76%). The overall prevalence of psychiatric co-morbidities was 35%, with mental retardation being the most common (38.16%) followed by oppositional defiant disorder (27.63%), conduct disorder (16.45%) and seizure disorder (11.84%).

Conclusion: Seeing the high co-morbidity, it becomes important to screen all the patients diagnosed with ADHD for psychiatric co-morbidities.