Dear Student,
You are definitely not clear with your question as you haven't specifically mentioned the college you are asking about as I guess you surely know that the dates for admission forms varies from college to college and every college also do have their own entrance tests or admission procedures you need to go with the procedures. So, registrations might have just opened for some while have closed for others as it varies from college to college. For specific details of the dates you may search in the specified college's official website .
Hope this might help you.