Hi there!

Many students take a drop year to prepare rigorously for JEE mains and Advanced examinations. Yes, it is worth taking  a  drop  for  JEE  to get admission into the top engineering institutes. Preparing for JEE without having to worry about school tests, board exams, board results, etc., is very helpful. You will get ample time to practice a lot of questions at home. However it is not a compulsory fact to take an year off but it is common. In the drop year prepare well following a a definite pattern . Give as many mock tests as possible. All the best!

For more details please check the following site;

https://www.google.com/amp/s/engineering.careers360.com/articles/should-i-drop-1-year-for-jee-main/amp

Hope this helps!

Thank you!