In any engineering course, maths will be much more
Yes there would be more mathematics in engineering, but that would be applied mathematics i.e the mathematics that you would apply in your lives. This mathematics you would be able to apply in your engineering knowledge such as Laplace which is helpful for electrical engineering students.
Surely there would be more maths than class 12th and much more difficult but it is not that difficult if you do it by understanding.
Hope this helps