BACKGROUND: CNS tumors comprise 1-2% of all malignancies. CNS tumours encompass a broad spectrum with regards to age, location, histology and clinical outcomes. This article aims to study the incidence of CNS tumors in different age groups and also to study the major histologic subtypes of brain tumours. MATERIALS AND METHODS: This study was done at Rajendra Institute of Medical Sciences (RIMS), Ranchi, from Jan 2015 to April 2018. RESULTS: Our study included 104 patients between 2-70years age group with CNS tumors that were histologically confirmed. The most common tumour was astrocytoma (51.92%) followed by meningioma (31.73%). CONCLUSION: This article will help to evaluate the burden of CNS tumours in different age groups in our region. It will also help to study major histological subtypes of CNS tumours.