Dear Praveen

               Best line for a computer science and engineering Student depends on the interest and the skills that a student have.
Computer science is one of the most diversd field in the engineering. As a student have a lot of ways to choose his career. There are field such as IOT , web development, machine learning, artificial intelligence, data scientist, app development and various others.
One of the most demanding line now a days and in future is artificial intelligence and data science.
The student working in this line have a very bright future and had a very good salary.

You can get various online course on website such as Udemy.com , Coursera.com and so on computer science is a vast field of research and is growing day by day and creating a golden era of software engineer.