Hi there!

Well it is not possible to determine the exact rank corresponding to any marks, as rank of an individual depends on various factors like:

1- Difficulty level of examination.

2- Number of students appeared in exam.

3- Category of an Individual.

4- Relative marking and many more

But we can get a rough idea of rank by analyzing some previous year trends of rank vs marks.

With 70 marks in KCET your rank would be anywhere in between 5500 to 6000, however this is not exact rank as rank corresponding to score changes year to year.

Also if you wish to know about the colleges in which you may get admission according to your score, then use college predictor tool by clicking on the link given below

https://www.careers360.com/kcet-college-predictor

I hope you will find it useful!