I got 300 marks 84552 rank can i get 6 month diploma in ultrasound training

rank of 84000 it is going to be very difficult for you to get diploma anywhere in any subject not only for radio ultrasound training so I would definitely ask you to try to store within at least the top 20000 all India and to get the proper dmrd courses which you are looking for all do if you have cross the 50th percentile and the cutoff which have been stated then you may perhaps make it to the private institutes but the cutoff for the general category was around 345 and you scored less than that chances of you qualifying to that course is really less