Hello,

After calculation the normalized score or the merit /percentile will be=172.5/4+90/2=88.125

With this percentile your son can easily get admission into CEPT. Although cutoffs vary every year focusing on other factors like number of candidates appeared,difficulty level and category. I am considering for general category.Anywhere around 140 above is a good score and mostly above 80 percentile is considered a very good score to get admission in top colleges.If you want to go for more colleges,then do give a shot for others also.You can check top colleges of architecture by below link.

https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-india-accepting-nata

Hope you got your answer.Good Luck!