if we need admission in usict(btech) or MAIT (btech). Do we need to fill the ip university admission form as the admission is on the basis of jee mains?
Yes from last year the admissions of GGSIPU colleges take place through the score of JEE Mains only from main campus to the affiliated colleges.
You can check more information here: https://www.careers360.com/university/guru-gobind-singh-indraprastha-university-delhi
Hope it helps,