Is it worth preserving rough copies for revision later?
Prep ke time rough copies mein kaafi questions, mistakes, shortcuts aur random notes likhe hote hain my qualifications: currently preparing seriously and trying to improve my revision system. Doubt hai ki kya in rough copies ko sambhal ke rakhna revision ke liye useful hota hai, ya clean notes aur mistake notebook enough hote hain? Jo logon ne rough copies use karke revise kiya ho, unka practical experience jaan na chahta hoon.