i got seat in first round which is my fifth choice and i took float options ,so can i got collage which is below the allotted seat ??

Dear student,

First let me clear you one thing about float.

FLOAT - It means that you have accepted the alloted seat, and you want a higher preference branch or college in further rounds of counselling.
And if you get any higher preference seat then you will take it.

So, if you want a lower college than your alloted college then it's not the right decision.

But if you are asking that whether you can get the college, that you have placed below your allotted seat during choice filling, then if they are higher college then yes, you can get them, if you lie within their cutoff range in next rounds.

Also check out the following link to know more about josaa counseling :-
https://engineering.careers360.com/articles/josaa