Languages

UG Level: Candidates should clear class 12th in any stream with minimum 50% - 60% marks from a recognised board. It may be noted that humanities and social sciences eligibility criteria mentioned above might vary depending on the policy of the university or college in which a candidate is applying for admission.
I hope you will get a seat in English (H) your chances are high.
All the best.

You will have to include English in your best four subjects because you need to have English or any other language subject in your best of 4.

What exact percentage your son has got? According to that, check and find if he is eligible for the same or not.

Yes, you are eligible for Ravenshaw University. This university conduct entrance exams for admission.

You should choose those 4 subjects in which you have scored best marks.

Hello,
Hons. in Zoology, Eligibility: The common eligibility criterion for pursuing B.Sc Hons. in Zoology degree is qualifying 10+2 in Science or equivalent examination with a minimum of 50% marks obtained in Biology subject and in aggregate from a recognized board of the country.

Yes, you can apply for this course.
Following is the eligibility criteria for the course
Minimum of 18 years
Candidate must have passed 10+2 from a recognized board.
The student should not suffer from any chronic illness.

No, you can't include 2 languages in your best 4. Best 4 should include 1 language and 3 elective subjects.