Hello maresh,
Well there are plenty of jobs available after your engineering courses
Regarding the top courses like CSE,
1)software engineer
2)web developer
3) teaching side
4)data base
5) artificial intelligence
6) big data analyst
Regarding ECE,
1)Analog designer
2)embedded system engineer
3) circuit designer
4) hardware developer
Regarding Mechanical,
1)AUTO CAD develoer
2)automobiles
Regarding EEE,
They can go for electrical circuit designer , circuit debugger etc
Regarding civil,
1) construction , contracter,
Thank you