Hello Faizan. DTU is one of the best colleges in Delhi, which takes admissions based on JEE(main) marks/rank. As I mentioned JEE mains marks because there is a huge difference, due to the inclusion of Qualifying examination marks in the calculation of rank. But this was only till 2016. As from JEE 2017, Boards marks doesn't play any role in your All India Rank, it is only calculated on JEE mains marks purely. 

To get admission in DTU, you need to score around 140 if the branch doesn't matter to you but if it does so then you need to score around 180 for the safer side. A little hard work will get you a seat at DTU.

Now coming to the total fees:

• Total Fee to be paid for 1st Year- Rs. 1,38,000/- Per Annum
• Fees to be paid at the time of Admission- Rs. 75,000/-
• Balance fee to be paid at the time of Registration for First Semester in respective University / Institute - Rs. 63,000/-

You could find more information in this regard at: http://jacdelhi.nic.in/publicinfo/Handler/FileHandler.ashx?i=File&ii=139&iii=Y

Hope this helped.

Thanks