Hello shivam

You don't need to give improvement exam,

Just focus on your DU JAT,if you do good and get good marks,you can definitely get admission in shaheed sukhdev college.

You have good marks in 12th,preparing for both exams can make it difficult for you to give attention properly. But if you are very confident and you know you are so capable of handling both at one time again,you can try.

But my suggestion for you is to focus only on DUJAT,and preparing as hard as you can with dedication, you will definitely crack DUJAT with good exams.

I hope it helps

Best of luck