As you have asked about the Guru Gobind Singh Indraprastha University (GGSIPU) mobile or contact number, I am giving you information about it, check below for the details

Guru Gobind Singh Indraprastha University
Sector - 16C Dwarka
Delhi - 110078,
India
Phone: +91-11-25302167, 25302168, 25302169
Admission Helpline
011-25302167
011-25302168
011-25302169

It has following schools under it:

University School of Information & Communication Technology
University School of Chemical Technology
University School of Biotechnology
University School of Management Studies
University School of Environment Management
University School of Basic & Applied Sciences
University School of Humanities & Social Sciences
University School of Law and Legal Studies
University School of Engineering & Technology
University School of Education
University School of Architecture & Planing
University School of Mass Communication