To get admission in IET your rank matters not marks because level of paper may vary with respect to previous years papers but you should try to score atleast 450 marks (under 3000 rank)to deserve some core branches .One more thing that during counselling you should have patience because in last round of counselling you can get a drastic favorable change in your gained choice however your rank is more than 5000 many people don’t know this thing so that a few get this opportunity.But now you should first revise your syllabus thoroughly and go for mock tests it will really help you to score well dude.