P.S. - What details can be corrected using JEE Main 2018 Application Form Correction facility?Change in mode of exam: The candidate will be allowed to change the mode of exam from pen & paper to computer-based, but the reverse will not be allowed.Change of Paper: All particulars in the JEE Main 2018 application form can be corrected, including choice of paper. For example the candidate can change the choice of paper from Paper I to Paper II (and vice versa) in JEE Main 2018 exam, or opt for both papers. Any extra amount that may arise as a result of change of option has to be paid at the time of making the corrections.Aadhaar details: Can be corrected using the JEE Main 2018 application correction facility.Medium of examination: Candidates, if they wish, can change the medium of examination from English to Hindi/Gujarati. In fact, computer-based candidates have the flexibility of selecting the medium of examination at the start of the exam. Also, if a candidate had opted for Hindi/Gujarati and wants to opt for English instead, the candidate needn’t have to do anything as the question paper will be bilingual Hindi/English and Gujarati/English. The candidate is free to attempt questions in any language he/she is comfortable in.Change of Exam City: This is allowed only in case of change of exam city from India to one abroad.Name, State of Eligibility, and Date of Birth: These particulars that the candidate entered at the time of JEE Main 2018 registration can also be changed. Source: https://engineering.careers360.com/articles/jee-main-application-form-correction