If you got 79% in your class 12th, then yes, you can get admission in Diet course. With that percentage you can get admission in any course. Most of the private universities have criteria of at least 55% in class 12th for admission. You have way more percentage then that.
You can also apply for government institutions if you have given any government exam.
Thanks & have a nice day.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile