Hey there! 

Diploma in Radiography is a 3-year full-time diploma level Radiography course and you need to be done with your 10+2 examination with at least 60% of marks from the board. Distance learning radiologic technology courses are Pathophysiology, procedures in Radiography, Applications of Diagnostic Imaging, Patient Care Management, Radiation Biology,Radiologic Imaging,Introduction to Anatomy and Physiology, Healthcare Ethics. Online learning could be a great option for you to persue radiology from distance learning if you are a busy person. 

Thank you and keep asking.