Hii Nilesh

ofcourse it doen't make any hardlt affect how many time you take drop. it only minimize your appearing for jee exam , So if you get AIR 1-10 then surely you get an iit mumbai or iit delhi. If you take drop do work hard it doesn't affect its you 3rd drop or 4th drop. be on your words.

here are some links that help you go ahead

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

https://engineering.careers360.com/

Good Luck