Hey

Being a general candidate , with a rank of 72000, there are negligible chances of getting a seat in top aeronautical engineering colleges as their cutoff ranks hardly reaches upto 20 or 30k. You have chances to get a seat in civil or chemical engineering. Buti suggest you not to change your preferred course.

You can instead use JEEMAINs college predictor tool to predict the colleges , you can get on the basis of your rank.