As a university, PTU is good enough but if you want to take other aspects into account such as the campus, then keeping your options open would be a good idea. Someone I know has completed her MBA from PTU and in her opinion, the institute is entirely immersed in academics which is not bad per se but there are hardly any extra-curricular activities and events going on. The faculty is also subpar in their abilities.
In the case of engineering, the students are known to memorize everything instead of understanding the concept. There are always exceptions, though. The placement scenario in PTU is also not that great. The average CTC offered at the institute is 5 LPA. However, the colleges under PTU are more popular than the main campus.