CAT is not For B Tech exam...CAT is for Post graduation In Management or Master in Business administration(MBA)...no one in the history Got 281 marks in CAT..& If you will get it then you ll tagged to be more intelligent then Einstain.

Hello! Hope you are doing well. Firstly, congratulations for you score. You can use the renk predictor to know your rank. The link is "https://bschool.careers360.com/pathfinder/cat". Hope this is useful to you. Good luck!