CBSE

Yes, you can get admission to the B.E./B.Tech course at Chadalawada Ramanamma Engineering College (CREC) even without completing your 12th from the CBSE board, provided you meet the eligibility criteria through other recognised boards like State Boards, ICSE, or equivalent. The primary requirements for getting admission include:
1. Complete 10+2 or equivalent from a known board with core subjects of physics, chemistry, and mathematics.
2. Valid score in Andhra Pradesh EAMCET- Engineering Agriculture and Medical Common Entrance Test, or for that matter in any National/State Level Entrance Exam in which you take - JEE Main.

It so happens all the above stand right, hence board does not matter much, be it CBSE or any other. You need help getting the forms; let me know!

Vikrant Institute of Technology and Management (VITM), Indore allows eligible students to apply for admission to its B.E./B.Tech courses, even if he/she has not been through its 12th grade in the CBSE board:

012. Educational Qualification:

must have completed their 12th grade (or equivalent) coursework with Physics, Chemistry, and Mathematics as core subjects from a recognised board. This means that even if you have completed your 12th from a state board or another recognised board, such as ISC, NIOS, etc., you may still apply.

Minimum Marks Required: 

Have to score a minimum aggregate of 45% marks in 12th (40% for reserved category candidates). 

Entrance Exams: 
A score in entrance examination like JEE Main, MP PET, or any other recognised entrance examination must be acquired to be eligible for the B.E./B.Tech course.
Some institutions also provide direct admission based on the result of the 12th grade, but again, this is ratified according to seat availability and criterion of the institution. 
4. Other Requirements: 
Ensure you satisfy any other particular requirements stipulated by the institution or the entrance examination that you are undertaking. To summarize, it is no more an issue of which board of education you come from (CBSE or otherwise), as long as the subjects and marks requirements for entry are fulfilled.

Yes, the NUCAT syllabus closely aligns with the high school Class 12 curriculum of CBSE, ISC, and various state boards. The subjects covered are Mathematics, Physics, and Chemistry are generally based on topics taught in standard Indian school curricula. This alignment means that students who have studied under CBSE, ISC, or state boards will find familiar topics in the NUCAT exam.

However, while the topics are similar, NUCAT questions might vary in complexity, including a range of basic to advanced questions designed to assess a candidate's understanding of each subject. It's always recommended to review the official syllabus provided by the institution, as some topics may have a slightly different focus or emphasis based on the course or programme requirements.

In the same academic year, students are often permitted to take the CBSE Class 12 compartment test no more than twice. The third try in the next test cycle, like the one in July 2021, might not be available to students who have previously used two attempts—one in the regular exam and one in the first compartment exam. Students can usually sign up for the normal exams the next year to try again if they are unable to pass the compartment exam. Since the rules governing compartment exams can change from year to year, students must confirm the precise guidelines established by CBSE. To make sure they don't pass up any chances to raise their performance, students should also keep up with any announcements made by the CBSE board on eligibility requirements, registration deadlines, and exam dates.