Science

Please check the college details in the link provided for B.Sc computer science in Noida:
https://www.shiksha.com/it-software/colleges/b-sc-colleges-noida

Hello Anshuman Bhardwaj, If are not confident in any chapter , read RD Sharma Objective and solve all illustrations and solved examples, exercises are not so good. Most of the questions in Arihant are picked up from here only. Hope this helps! All the Best!

PCB has many options-
1. There are many MBBS programs in Canadian universities:
2.Bachelor of Business Administration(BBA)
3.B.Sc Biotechnology
4.B.Sc Applied Health Sciences
5.B.Pharmacy
6.Optometry
7.Computer Science with specialisation in Biology and Bio Informatics
8.Chemical Engineering, etc.

You can learn cyber security or you can enroll for any of the training programs by http://pune.cssrl.in. The training is possible in regular classroom or in online mode. The career options in the field of cyber security are growing a lot these days.
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Requirements
These vary between study programs and levels. For each course, Indian students will need to meet a minimum English language requirement. Along with that a minimum academic record of 65% and above for humanities stream in class XII, and 70 - 80% and above for Science/Commerce stream in class XII will also be required. Foundations and Diploma programs are available for students who have secured below 60%. The student should have completed 18 years of age before joining a degree program.
It is important to note that these numbers are just for reference purpose, the actual numbers may differ from university to university.

For this you can check the JoSAA website and then check different colleges with the branch offered and last year's opening and closing ranks of the particular branches and the total seats available for the course.

Hi Laddi,
There could be many options from agriculture to pharmacy. Please mention your subjects for better suggestions. However, remember that the final choice is something you must make on your own. Know your interests and aptitude.