रेडियेशन , एक्स-रे एबा कोबाल्ट-रेनि मददजों जायो जायजों केन्सरगोनां जिबख्रिजों लोगोसेनो गोबां गोख्रों जिबख्रिफोरबो गाज्रि जालाङो ।
Radiation occurs through X-ray or Cobalt-ray by which along with cancerous cells many healthy cells also get destroyed .