Hello Deepthi,

Below is the information from careers360's site about the number of attempts for JEE MAIN

Originally every candidate has a maximum of three attempts for JEE Main. Candidates can appear twice for the entrance test in a year. So this is used in correlation with the original number of attempts, from 2019 onwards, JEE Main number of attempts in total will be six.

For more info visit the careers360's site mentioned below.

The link is: https://engineering.careers360.com/articles/jee-main-number-of-attempts

Hope this helps and all the very best!