What is the Importance  of Class 12th Marks in Life?

The marks of your  12 board class decides your career. Many  colleges set their  admission criteria on the basis of 12th grade  scores. Students with  higher marks will  have more advantage 

It entirely depends on the institution for which  you are applying for  further studies. If you are applying for a top  college you must have  a higher percentage

If you want a  government job, your 12th-grade scores will  matter. However, the  criteria in these exams  is that you need to have  a certain percentage  in your 12th class

If you are applying for  a scholarship, then also  12th class marks matter. There are many scholarships where  you have to show your  12th percentage

So, yes 12th class marks are important. This  depends on what course  or field you wish to choose.  You should not stress  about getting a higher percentage.