Hi aspirant,

There is no semester exchange thing available in these colleges so you would have to start all over again. The admission at GGS IPU are completely based upon the scores obtained in IPU CET examination and to get admission in NSUT you would have to write the JEE main examination followed by DAC counselling. It is ok if you want to change your college as there are plenty options available in Delhi and nearby regions the complete list for which can be seen at Engineering Colleges in Delhi 2022 – Courses, Fees, Admission, Rank (careers360.com)

Hope it helps!