Colleges in Uttar Pradesh

For admission in IMS, Noida, you will have to go through the JET. Admission is based on the marks obtained in 10+2 and score obtained in JET conducted by IMS, Noida.
https://www.shiksha.com/bba/course/bachelor-of-business-administration-institute-of-management-studies-noida-188175

Here you go to know all the detail about JEST
https://www.shiksha.com/science/jest-exam.

The official date is not yet confirmed, but probably you will get it on the 10th of July, 2019 or after that, keep visiting the official website of AMU.
Best Wishes.

Yes, B.Sc nursing course is affiliated from Dr. Ram Manohar Lohia Avadh University. This is an affiliated college, you need not to worry about the same. You can visit the campus also and ask about the affiliation details. They will provide you the all information.
Best of luck.

Go and check all the fees of the courses provided by AU
Kindly visit the link
https://www.shiksha.com/university/allahabad-university-au-3574

Kindly predict your college in this college predictor. JEE Main rank predictor is an online tool which predicts the candidates rank range and probable colleges based on the difficulty level of the examination, average marks scored in JEE Main and seats available in IITs, NITs, GFTIs, and other SFTIs

Yes, you can get paramedical after class 12th with PCB. You can apply for admission. Good luck.

You cannot shift college, if you are in the same college then you are eligible for 2nd year.

Let me be frank, you percentage is very low and you will find it difficult to take admission in Galgotia for CS. But, for once talk to their admission cell.

For IPMAT, you must be very comfortable with NCERT Maths. It forms the basis for all the concepts which we learn and practice from other sources. Meanwhile, you can start reading News dailies, Magazines to strengthen your English grammar. Though I won't recommend any particular source, you can refer