You can go for Computer Science Engineering for better placements.

The Department of Computer Science and Engineering at OP Jindal University imparts quality education at undergraduate and post graduate level with emphasis on basic computing principles, rapidly evolving technology, and continuous need for innovation in this field. To ensure that students are sought by IT companies, the department provides training in various cutting edge technologies, inculcate professional behavior, instill ethical values and develop leadership and team working capabilities. Our program provides flexible curriculum enabling the students to achieve their goals and make them industry ready.

Department has experienced and energetic faculty with specialization in different areas like Computer networks, Embedded and IoT, Artificial Intelligence, Data Mining etc. Department has got state of the art laboratories, latest hardware-software and teaching learning tools to create a learning environment and impart quality education.

For more details visit: http://www.opju.ac.in/soe_cse.php

CSE is one of the top medical branch and is in demand among students. You can choose CSE if interested.

You can check the scope for both below:

CSE-All about

Mechanical-All about

Hope this helps.