Engineering Entrance Exam

Yes, you can take admission in Anna University.

Yes, you can easily get this NIT for CSE under the category seat easily.
Go ahead.

For that, you have to score a minimum of 45% in class 12th and at least 150 marks in JEE Mains in order to get this college.

No, you won't be able to get admission in this college at this score, but yes, you can get admission in other streams of this college.

Yes, you can easily get admission in this college but for CS branch, you have to wait till the last round of counselling.

You won't be able to get any with at this score, even you won't be able to get a top ranking private college also with this score.

Firstly, she needs to clear 12th standard with a minimum of 75% marks and then she needs to secure good marks in JEE exam, for securing good marks in JEE, she should join a good coaching institute and solve as many numerical problems as she can. She should study the whole syllabus of class 12th NCERT books.

Physics:
Section A:
Physics and measurement
Kinematics
Thermodynamics
Work, energy and power
Rotational motion
Gravitation
Laws of motion
Properties of solids and liquids
Electronic devices
Kinetic theory of gases
Oscillations and waves
Communication systems
Current electricity
Magnetic effects of current and magnetism
Electromagnetic induction and alternating currents
Electromagnetic waves
Optics
Dual nature of matter and radiation
Electrostatics
Atoms and Nuclei
Section B:
Experimental Skills (complete syllabus is mentioned in the link below).

Yes, there are many IT firms that are eager to pay you this much package, but they demand that much skills from you if you have those skills then you can easily grab that package.

Some books are:
NCERT Mathematics
Organic chemistry by Arihant publication
Inorganic Chemistry by OP Tandon.