Hi there,.

If you forget to lock the choices then there is nothing to worry about, josaa will automatically lock your choices . But it would be better if you lock the choices by yourself, so that you can check your choices.

I hope this helps.

You can use our college predictor tool if you have missed to fill some college with your rank

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer