You can download JEE Main 2020 Answer Key Sep Exam for B.Tech from here. The JEE Main previous year question papers will help you know the pattern of the exam and the latest trends of questions that are being asked. Questions do repeat in JEE Main from previous year papers. Toppers recommended strongly that every aspirant must practice using JEE Main previous year question papers. Here you can download JEE Main 2020 Answer Key Sep Exam for B.Tech , also at aglasem.com you will get all NTA JEE Main Answer Key PDF for free.