If you are eligible for both streams, it is important to keep in mind that both are tier 2 colleges. According to my friends at the institutes, these colleges don’t see many core companies in the campus placement even for the CSE branch. Most of the recruiting companies are IT consultancies or Tech Support.
Hence, if you opt for ECE in UIET you will probably end up working in Deloitte or Infosys, or MU-Sigma. Therefore, it is advisable to stay close to the main campus of PU. This will also help you in enjoying your college life to the fullest.
While on the other hand, if you are passionate about coding and want to become a software engineer, then UIET and CCET, both see various kinds of young startups that recruit Software Developers as well as Designers. If this is the case, you must opt for CSE in CCET as a lot of subjects that are required for software development are not taken up in ECE because of PU’s curriculum, for example, AI, Data Structures, DBMS are considered only in CSE but not in ECE.