Hello,

No, you can't do two course at the same time. Here is why:-

1. your documents will be kept for verification and you will collect it latter after admission. You can't submit your documents in two different college at the same time.

2. Degree and diploma both are full-time course which means you have to daily visit campus and attend physical classes and sign your attendance. Cutoff for attendance  is 75%. so it is sure that you can't hold 75% in both the college for which you won't be eligible for end semester exam and have back papers.

3. If you hold back-papers then you can clear it in next year and till you clear all the papers, you will miss important dates or may not be eligible for low marks.

4. In physiological way, we try to gain more skill or knowledge in less time with certificates to showcase it during interview but the motive of education is learning. We gain knowledge to use it in such a way it will be benefit to other and you get payed for your effort. Monetary benefit is a passive result. First is learning.

learning from two different source is not possible. Brain takes time to understand, realize and remember the process. if we do for one time we forget it after few days for which we have to practice daily.

how many times we solve a numerical to remember a formula or process to solve it. that is learning.

Hope it helps!