After B E civil you can do many courses. But basing on your career planning and your interests you have to choose a course.
If you are interested in teaching profession, you can go for, ME/M.Tech, Civil or Environmental Engineering and then you can join as a lecturer in a good college. While working there you can do your Doctorate also which will ensure you further career growth.
If you are interested in Industry jobs, you can go for MBA, Operations Management or Project Management.That will give you good chances to progress in the industry in your core ares.
If like many if you want to go for IT field you have to do good certificate courses like SAP, Oracle, ERP and others.
If you want to go in to construction field with the present qualification itself you can try for jobs which will help you in putting up service early and have fair chances for progress.