Colleges in Delhi

Hi Sneha,
Of course, you have a good chance in getting admission in the following colleges:
Fairfield Institute of Management & Technology
Madhu Bala Institute of Communication and Electronic Media
Kasturi Ram College of Higher Education
Lingayas Lalita Devi Institute of Management Science
BLS Institute of Technology Management
You can also get Tecnia, Trinity, JIMS for second shift.

JNU Eligibility Criteria 2018- M.Sc in Life Sciences
Candidates must have a Bachelor's degree either B.Sc. /B.Tech or Equivalent in Biological/Physical/Agricultural Sciences or Biotechnology stream from any state or central recognised Institute/University.
Candidates must have obtained at least 55% marks in aggregate of all subjects.

Follow the link below for all the information:
https://www.shiksha.com/science/course/b-sc-hons-in-computer-science-college-of-vocational-studies-sheikh-sarai-delhi-53813

They are different.
B.Sc (Hons.) in Statistics allows you to specialize in the branch of Mathematics that focuses on collecting, analyzing, and presenting a large number of numerical data. There are many practical applications for Statistics, including fields such as Science and Medicine, Government, Business and Education.
Bachelors in Statistics provides the students the fundamental knowledge and skills related to Probability, Mathematical Statistics, Data Analysis and Statistics Computing. BS in Statistics is very flexible and can lead to a career in business, industry or government.

You MAY get an affiliated college in spot counselling round. But the chances are really less. You can get admission through management quota or you can try the next year. You may also apply to provate colleges to save time.

Yes, you can pursue any BA course, but your some marks are deducted when your best 4 subject percentage calculated. For information regarding deduction of marks, you can download the brochure of DU UG admission.

Quite less, I would say. In round 3, the rank ends at 1500 approximately. Try your luck in spot round where there is still a chance.

To be frank, getting USICT is a rare chance. The only possibility of getting it is in the spot round.