can civil engineering student go to it sector if yes then how ?
Yes, definitely you may venture into the IT and Software Sector, after a Degree in Civil or anything else. You must be proficient with the Programming Languages Java/C/C++/Python, have strong experience in Competitive Programming and fundamentals in Computer Science & Mathematics as well as having done Courses/Certifications in Data Structures and Algorithms as well as OOP. Apart from this, you may even start with other important verticals like Machine Learning, Data Science and Data Analytics. You'll definitely end with fair share of Job Prospects be it Campus Placements or Off Campus.