How can I pursue a career in cosmology after 12th class?

Hi...

Yes you can get an admission in private colleges with 80% IN 12TH board without taken any entrance exam.

Many private universities and state-level government-aided colleges reserve a percentage of seats for direct admission based on Class 12th marks. A score of 80% is generally competitive enough for consideration for many popular branches.

Hi.

Dont worry you have so much time to score good marks.

follow some strategy 

• Organic Chemistry: Focus on all the name reactions and their mechanisms. Write them down repeatedly until you remember them perfectly.
• Physical Chemistry: Similar to physics, create a master list of all formulas from chapters like Solutions, Chemical Kinetics, and Electrochemistry. Practice applying these formulas to textbook problems.
• Inorganic Chemistry: Read the textbook thoroughly for this part, focusing on trends and important points (e.g., p-block elements).

Hi.

Yes you can do BA.

1. Identify your target universities and the specific BA programs you are interested in.
2. Visit their official admission websites to check the exact "program-specific eligibility criteria" and required CUET subject combinations for the current academic year.
3. Choose your CUET subjects based on these university requirements to ensure your application is valid for those specific courses.

Hi.

No, you cannot take admission in SSCBS because maths is compulsory.

• BMS  (Bachelor of Management Studies)
• BBA (FIA)  (Bachelor of Business Administration in Financial Investment Analysis)
• B.Sc. (Hons) Computer Science 

Hi...

In cybersecurity maths in mandatory,  some private universities offer flexibility under the new education policies (NEP 2020 and recent UGC guidelines). These institutions may admit students from non-Mathematics backgrounds in 12th grade to B.Tech. Computer Science and allied programs (including Cybersecurity) under specific conditions: