All central universities including CURAJ, CUPB are good for Chemistry branches like Organic Chemistry, Analytical Chemistry, and Applied Chemistry. The course curriculum followed by these universities is up-to-the industry standard. The lab resources at these universities are also quite good. CURAJ and CUPB are also located in the industrial region, so you will get decent employment options. You can choose either of these two universities for an M.Sc in Chemistry.
You should go for a B.Tech in CS, rather than a BSc degree. Most jobs usually ask for a 4-year long B.Tech degree or a B.Sc+M.Sc (5 years) in CS. So, you may face problems while applying for jobs. As for the colleges, DU will be a better option compared to CURAJ. In 2021, NIRF has ranked Delhi University 11th in India.
The Integrated M.Sc+B.Ed degree offered by CURAJ is a unique degree. You should consider doing this course if you are interested in teaching. It is a three-year-long course. After completion of the course, you will get an M.Sc+B.Ed degree. Doing this course instead of a traditional M.Sc and B.Ed is better since with this course you will be able to save a year.
The Mathematics department of CURAJ has a great faculty base. The professors are alumni of reputed universities of India and the world.