DSXchange

If the job is flowing with hash partition, and in between if i insert a sort, will the hash partition will flow to the output stage of sort.
Does the sort stage retains the partition done before. Or else i have to partition again after a sort stage.

Your sort stage lets you choose how to handle partitioning - by default it will not repartition so you don't need to repartition after the sort.

I will prefer to set the partition to same in the sort stage for this scenario.

same partitioning should be used if hash keys and sort keys are same.