Hello chiman labana , I found some best colleges for radiology in Rajasthan are following:

• Sawai Man Singh Medical  College  , Jaipur.
• Mahatma Gandhi Medical  College  and Hospital, Jaipur.
• All India  Institute  of Medical Sciences Jodhpur.
• Pacific Medical  College  and Hospital, Udaipur.
• Sardar Patel Medical  College  , Bikaner.
• Geetanjali Medical  College  and Hospital, Udaipur.
• Government Medical  College  , Kota.

Hope it will be helpful for you :)