No you cannot give DTU because the most basic eligibility criteria states that you must have completed your diploma in Engineering. Other than this you must have completed your diploma in Engineering with at least 60% marks in the aggregate. The duration of the diploma in engineering course must be of 3 years.

But you have done Bachelor of Science which is not satisfying the above mentioned criteria. First you need to do diploma in Engineering only then you will be considered eligible for DTU leet.

Read more about DTU lead by clicking on mentioned below link:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/question-dtu-leet-details-what-bihar-students-appear/amp&ved=2ahUKEwjflarqpZL1AhXD7WEKHRR1BDYQFnoECAQQAQ&usg=AOvVaw3XdzWgaFHutehPDeYKATMO