Are you confused about the branch of choice or college? If you want to choose the better institute then you should choose DDU. It is a lot better institute than CSPIT. 

If you are confused about choosing the branch, then I can say that the syllabus for IT at DDU is better than CSE at CSPIT. Also, DDU has a branch change scheme. If you have a decent CGPA, you can change your branch after the completion of your first year. So, you can switch to CE.