Are lesser known private universities worth it?

Are midtier universities like BUBT, IUBAT and others (which cost around 5-6 lakhs) worth it? Specially for engineering subjects like CSE EEE. I am an engineering candidate. And my situation is bad. Real bad. Didn't crack buet preli, my name's not even on the list in KUET, and ruet wasn't great either. It would be hard for me to afford private universities. Tope tier ones are out of equation. So, are the mid tier ones worth it? And are there any good private uni around 3-4 lakhs of cost?