Hello , 

As your query is you want to know whether your 12th standard marks are included in DU JAT score card. 

I would like to tell you that eventually not in DU JAT but all of the entrance exam based counselling process your 12th marks is included. 

The score is based on your rank in the entrance exam then your percentage in score of entrance exam and then your rank in the entrance exam. Therefore, yes your 12th marks is included in the set and makes a great impact on the overall rank you get. And even the college that is alloted to you in the rounds of counselling is based on your score card. 

Further, if you have any other query regarding the same you can let me know in the comment section below.

I hope your query is solved.

Thank you.