What is the admission process for B.Sc. Hons. Botany in Ravenshaw university and what is the cutoff?

Admission to Ravenshaw University (RU) is done purely on a merit basis. Your scores in class 10+2 examinations will determine your selection.

First, fill-up the form and wait for the merit list. If you are selected in the first round, you will be needed to submit the documents with a demand draft of the amount mentioned. 

If you are in the waiting list then also you will have to come to the college to submit the demand draft, showing your interest in taking admission. If you do not get selected, your draft will be returned.

The cut-off marks usually change, so nothing could be said for sure. To get some idea about it you can check the previous year's cut off marks in the admission brochure.