This is due to the changing world and demands of people. And there is huge growth in technology.

As our lifestyle has been changed and we all prefer to spend most of our time online, we need every service to be provided online whether it's banking, taking loans, knowing about any particular place, ecommerce and other.

Due to this reason, there are many startup's taking place in market who are working on these aspects. And for working on such feilds, there is huge requirement of knowing how websites work and are made, coding in different languages as per demand and having connectivity as much as possible.

Computer science engineering covers all these concepts including coding, networking, working on websites. The placement are higher in cse departments due to incresing online demands of people.

And most part of mechanical, electrical, chemical and auto are also becoming automated. And automation also requires using skills included in cse subjects.

As a result, there are very less candidates opting for branches like mechanical, electrical, chemical and automobile engineering.