Hello Aspirant,

NTA conducts CUET-UG exam through which admission is provided in reputed Central, State and Deemed Universities. Appearing in this exam would be one of the best option as you'll get appear for prominent universities like BHU and DU all at once. Other than this there are several universities like Jamia Milia Islamia and others which conduct their entrance exams while quite a few give admissions based on your +2 marks.

I'd suggest you go on the official websites of the desired universities, know about their syllabus and pattern and start preparing already.

Below I've attached a link, please go through it to know about the best universities for BSc hons course.

https://university.careers360.com/colleges/list-of-bsc(hons)-universities-in-india

Hope this helps!!

Good luck!!