i chose slide option in round 1 and no change in round 2 same college same branch i got then will i choose slide option again

No, if you selected the "Slide" option in the first round of JoSAA (Joint Seat Allocation Authority) counseling and received the same seat (same college and same branch) in the second round, you cannot choose to "Slide" again in the subsequent rounds. The "Slide" option, once chosen, remains in effect for all subsequent rounds until a higher preference seat is allocated or you choose to "Freeze" your seat.

Slide Option:

The "Slide" option means you have accepted the current seat and are seeking a better branch within the same institute in subsequent rounds.

Effect of "Slide":

If you choose "Slide", you are essentially telling the system that you are okay with the current seat, but you want to be considered for a better branch in the same college in future rounds.

Lock-in Effect:

Once you choose "Slide", it remains active until you either get a better branch in the same college (and you accept it), or you choose to "Freeze" the seat (meaning you are satisfied with your current seat and don't want any further changes).

No Change in Option:

You cannot switch from "Slide" to "Float" or vice-versa after the first round. Your choice of "Slide" will be carried forward throughout the counseling rounds.

In your case:

Since you received the same seat in the second round after selecting "Slide" in the first, your seat is effectively "locked" in for the remaining rounds under the "Slide" option. You cannot switch to "Float" or any other option.