Surabhi to give JEE Advanced Architecture Aptitude test 2018 whose registration process will commence from June 10 to 11, 2018 your friend need to qualify JEE Advanced exam. Without qualifying JEE Advanced examination your friend cannot give AAT 2918 exam which gives entrance in the architectural department of IIT Roorkee and IIT Kharagpur.

There is no relation between JEE Mains Paper 2 and JEE Advanced AAT exam. With JEE Mains Paper 2 you can get admission in other architectural engineering colleges but not in IITs.

Feel free to ask if you have any more queries. All the best!!