Science

For IAS preparation it would be good if you pursue your BA in the subjects like history, public administration, economics, constitution and geography and among these I think geography and public Administration are the most popular optional subjects for the Mains examination and accounts for nearly 50% share in the final Mains result.
In fact, UPES University of Dehradun has come up with a special IAS oriented BA programme for students to study BA in public administration along with IAS coaching and test preparation. This clearly signals that most of IAS aspirants prefer this subject in their BA.

Yes, you can apply for the UPSC exams in 2019, once you have graduated or even if you are awaiting results. The only condition is that you will have to submit proof of graduation once you have completed the course and will also have to submit detailed application form for UPSC (Main) examination.

There are over 82 B.Sc in nursing colleges in India offering 86 courses. Check the list of all B.Sc nursing colleges/institutes in India listed on Shiksha at the link provided below. Get all information related to admissions, fees, courses, placements, reviews and more on B.Sc nursing colleges in India to help you decide which college you should be targeting for B.Sc in nursing admissions in India.
https://www.shiksha.com/nursing/colleges/b-sc-colleges-india

Hi Selvam,
The webpage of this college is silent about fees charged for this course. It would be recommendable to get in touch with the college officials for detailed information on the fee charged.

Top colleges in India for food technology are mentioned below:
1) Acharya NG Ranga Agricultural University: College of Food Science and Technology, Kadapa
2) College of Agriculture - Hassan, Hassan
3) Anna University, Chennai
4) College of Food and Dairy Technology (CFDT), Thiruvallur
5) Agricultural Engineering College and Research Institute, Coimbatore
There are over 5 criminology colleges in India offering 6 courses. Please refer to the link provided below for a detailed list of these colleges:
https://www.shiksha.com/humanities-social-sciences/colleges/criminology-colleges-india