Hi Dear, AAT(architecture aptitude test) 2018 held on June 14, 2018.online registration of AAT will start on June 10 and ending date is 11 June.there is an eligibility criteria for AAT, you must be qualified the jee-advance exam.there are only two institutes participated in AAT that is IIT Roorkee and IIT Kharagpur.

if you want to know more information about AAT 2018 then check it out given link:

https://engineering.careers360.com/articles/jee-advanced-aat

good luck