Hii Mohit,

During Choice Filling, Out of the available choices, the candidates can choose as many institutes and courses as they wish and not restrict yourself with just a few choices.

So you can choose  as many choices  you want, during your Councelling.

For more information related to choice filling rules and criteria, you can visit the below link.

https://engineering.careers360.com/articles/how-fill-choices-in-josaa-counselling

Good luck!!