Hi Priyanshi, The exact dates for the gd/pi for nirma university mba process has not yet been disclosed by the university yet. The deadline for the submission of application forms has been extended till jan 19,2019. After the closure of the deadline, the university will communicate through mails to the shortlisted candidates along with the dates. Please keep checking the official website of Nirma University for the further updates. 

http://www.nirmauni.ac.in/IMNU/AdmissiondetailsFT