Hello vishal,

According to the careers360, AAAA means college is very good in Infrastructure. It denotes the score 80% to 89 percentile.

See the chart,

Rating       Score Rating         Description

•AAAAA    95-99 percentile    Exceptional

•AAAA+    90-94 percentile    Outstanding

•AAAA      80-89 percentile    Very Good

•AAA+      70-79 percentile    Good

•AAA        60-69 percentile    Above Average

•AA+        50-59 percentile    Fair

•AA          40-49 percentile    Average

•A+          35-39 percentile    Satisfactory

•A            < 35 percentile        Pass

I hope this helpful for you.

Best wishes!!