This study will be done in adults with brain tumors having good life expectancy requiring treatment with radiotherapy. The current practice for brain radiotherapy involves an advanced technique of radiation using X rays (photon radiotherapy). Another newer technology for delivering radiation is available called proton beam therapy, which allows to reduce the lower dose of radiation to the parts pf brain surrounding the tumor. After treatment with photon radiotherapy certain late effects of radiation like memory decline, hormonal deficits, hearing loss, worsening of neurological function can occur in some patients. From evaluation of dose profiling, proton beam therapy has potential to reduce the possibility of side effects by reducing dose to critical organs. However, there is no clinical data to demonstrate whetherthe theoretical dose reduction translates to a clinically meaningful benefit. In the proposed study, 156 patients will be randomly allocated to either proton or photon radiotherapy in 1: 1 ratio. The primary objective of the study is to explore whether proton therapy improves functional survival which is life expectancy without recurrence, death or complications from radiotherapy.