Hello Aspirant,

See in the information brochure of JEE-Main 2021 there is no any point regarding Form 16 and infact form 16 is just a salary certificate which shows that how much salary you got but it's not the actual proof of income from all the sources so FORM 16 will not be accepted on the place of EWS certificate, so what you can do is either you can fill a new application form or if not done the payment of application fee then you can edit it and upload the correct EWS certificate. Suppose if you don't have your EWS certificate then you can apply under general category for at least first attempt which is of February and apply for it at the earliest and when you will get it in your hand then you can upload it before any further attempt because the facility will be provided before each attempt so later on you can change your category from General to EWS.

On December 16th 2020 the application process for JEE-Main 2021 February attempt has been started by National Testing Agency (NTA) which is the conducting authority for JEE-Main 2021. You can apply for JEE-Main from the official portal of JEE-Main which is given below :-

https://jeemain.nta.nic.in/webinfo2021/Page/Page?PageId=1&LangId=P

Note that this application process will continues till January 16th 2021 and last date for payment of application fee is January 17th 2021 after which neither application nor application fee will be accepted and then after the correction window will be opened for the applicants from January 19th to January 21st 2021. Admit cards will be available for download from second week of February 2021 and the examination will be conducted from February 23rd to February 26th 2021 in two shifts per day, for February attempt.

A candidate will also have option to apply for one Session or more than one Session (February/ March /April /May 2021) together and pay exam fee accordingly. In other words, if a candidate wishes to apply only for one Session, he / she has to pay Examination Fee only for that Session during the current application period and will have opportunity to apply again for the March/ April / May Sessions.

Some insights of JEE-Main 2021 :-

• To qualify for JEE Mains, there is no minimum aggregate percentage criteriabut yes if you want to take admission into NITs, IIITs or CFTIs then you should score a minimum aggregate of 75% in your class 12th if you belongs to General/Unreserved category and 65% if you belongs to any of the reserved category.
• Also from this year according to New Education Policy the JEE-Main examination will be conducted in English, Hindi and other regional languages such as Bengali, Gujarati, Assamese, Kannada, Marathi, Punjabi, Tamil, Telugu, Urdu, Odia and Malayalam.
• In JEE-Main 2021 there will be two sections for each subject, Section-A will be of Multiple-Choice Questions (MCQs) and Section-B will contain Questions whose answers are to be filled in as a numerical value.
• In Section B, candidates have to attempt any five questions out of 10. There will be no negative marking for Section B.
• All question will be of 4 marks and in MCQs there will be negative marking of (-1) on incorrect attempt.

This year JEE-Main is being conducted with slight changes in it's pattern and it's conduction and you can check out all the changes from the link given below :-

https://engineering.careers360.com/exams/jee-main

I hope this information helps you.

Good Luck!!