Well, CBSE announced PMT results on 15th of April for the Preliminary Exam held on 3rd April 2010. Cutoff marks this time is 400 for General category and 320 for SC/OBC/ST category.

And if you have not checked your result yet you can check it here – PMT Results

Those who have qualified in it will get their center soon for the mains exam which is gonna held on 16th of May