I want a syllabus of all subjects like.English, Alternative English, political science, Education, Geography , Economic for class 12

Hi

Your profile suggests that you are from Manipur board.

The link of the official website for syllabus is given below:-
https://cohsem.nic.in/exams.html

To make it even easier,
Subjectwise direct link is given below:-

Elective /Aternative English:- https://cohsem.nic.in/docs/subjects/18_Elective_English.pdf

English:- https://cohsem.nic.in/docs/subjects/01_English.pdf

Political science:- https://cohsem.nic.in/docs/subjects/42_Political_Science.pdf

Education:- https://cohsem.nic.in/docs/subjects/30_Education.pdf

Geography:- https://cohsem.nic.in/docs/subjects/33_Geography.pdf

Economics:- https://cohsem.nic.in/docs/subjects/29_Economics.pdf

Copy the links and then search, you will get them

This  syllabus  will  be  very  helpful  in  your  preparation  because  it  will  let  you know  the  topics  and  chapters which are included  in  your  examination   , so go well  through  your  syllabus  and  plan your  studies  so  that  you  can  score  well in  your  board  examination.

And yes ,  try  to  complete  your  whole syllabus at  least a   month before of your board   examination   so that you can give your  last one  month for  practicing mock test  papers and  revision .

To help you further,

Here are some tips to excel in your board examination:-

-----------------) Go well through your textbooks

-----------------) While covering the syllabus, make revision a part of your routine.

-----------------) Practice at least 10 years previous year question papers

-----------------) Solve at least 3 to 5 mock test papers for each subject to ace your board examination

Thank you