Hello Ashish,

Since the window for application form correction has been closed on March 16 Here I am sharing a link in which the conatct details are given where you can mail your query to the Head office as the window for correction has been closed 

https://jeemain.nic.in/WebInfo/Public/View.aspx?page=80

https://engineering.careers360.com/articles/jee-main-application-form-correction

hope this will help you 

Dear Reader,

In such case i would suggest you to mail them for correction or get an affidavit issued for counselling and before that read the norms/guidelines carefully regarding this issue. Try to reach them through phone  call incase mail procedure takes time.

Goodluck