Hello Harshitha, See Engineering subject has importance and scope in their respective field, the only thing is what we want. In the current scenario, there are 10 field that has importance in the various sector for Engineering candidate - Software engineering, Aerospace engineering,  Biomedical Engineering, and Environmental Engineering, Civil engineering, Petroleum Engineering, Mechanical engineering, Project Development engineering, Chemical engineering andFuture friendly engineering (such as Nano tech., Biometrics, Cloud computing and Artificial Intelligence).

So, you need to find which Field you have interest in, which field you always have had eagar for know more about, In Which field you can Make your future career...

All has wide range of placement... Specially Petroleum, Project Development, chemical, Future friendly, and aerospace and even Mechanical in defence sector... Best of luck...