PES University’s Electronic City campus is now formally part of the PES University and not part of the Visvesvaraya Technological University (VTU) starting from the academic year of 2019-20.
When the transition occurred PES University used to offer a BE degree and not a B.Tech. As to why PES offered BE and not B.Tech, the best guess would be that they wanted to differentiate the program from other engineering programs being offered by VTU. Currently, though, they are offering the traditional B.Tech degree. However, it does not matter if it is BE or B.Tech. As there is no such significant difference between B.E and B.Tech degrees.