counselling of jee is done through jossa. there  will be a mock counselling you can go for it for understanding the matter clearly. while the counselling will be held go to thesite nd fill up the form as directed. then choose the colleges and streams as per your rank and choices. keep the good colleges at top. keep the colleges of your priority on the top followed by the less priority colleges. then after the 1st  counselling keep on floating the choices. when you get the college of your choice lock your choice and go and take admission in the college. good luck for your counselling.