Hi Rohit,
There is no provision to bind image to radio button element. So you cannot have an image in radio button.
Try for some work around like, placing radio button and an image ui element for each line in a separate transparent container.
Example:
TC_Radio1
Radio1
image1
TC_Radio2
Radio2
image2
Now, you can bind the image source to image ui elements. ( note if user clicks on images, there will be no radio button selection event triggered )
Regards,
Rama