Do i have to give again so i can improve my score
So it will be a guarantee that i will get a NIT for present time ?
Whats your opinion?

gk and current affairs You wil definitely get a good NIT. There's no doubt about that. However, you can appear again, maybe for scoring better percentile, and maybe for practice before JEE Advance.

i study in class 11 and am moving to 12th. Due to online classes my 11th was a waste. How can i repent for this and make it better in class 12??
please give me some advice i am really tensed!!

Devarsh Shah Hi,
It is very common to get tensed about the stuff you don't know at this moment, especially for someone like you. As of now, since you're moving into 12th, the thing to remember is JEE has questions from both. So, first step is to not focus on what you don't know and study well in 12th. Make sure, your 12ty syllabus is very strong. I know in middle here and there concepts from 11th class might come, but when they come only then you just pick a book, ask a friend, a teacher, to make you understand that concept. Once you understand it, get back to 12th. After your 12ty syllabus is done, then probably during revision time, you will go to 11th and practice is, go through the concepts. At that time you will spend time on improving your 11th. In this manner, your 12th won't be hampered and your 11th will become better.