The BA(Hons.) Mathematics course at Delhi University is a three year integrated programme. This course is offered by many Delhi University Colleges like Hindu College, Kirori Mal College, Dyal Singh College, Ramjas College, Daulat Ram College, Deshbandhu College. If you are going for Ramjas College, rest assured it's a great college. And also you can do bA programme maths + political science. This combination is also provided by DU.