>>>>>>>>>1. What is the condition of Dudipatsar lake? is it melted or not?
Lake should be melted.
>>>>>>>>>2. What is the condition of Dudipatsar trek? is there any glacier on the way? do we need iron nailed shoes to trek there? and is it hard to trek or not?
No, you can use normal jaguar shoes. first 2 or 3 hours little hard treking then normal walk,
>>>>>>>>> 3. what is the status of Seral Lake? is it melted or not? what is the trek status to seral lake? is it hard or easy?
saral lake should be meltd, and trek is not too hard .
>>>>>>>>>4. Should we stay at Dudipatsar lake and Seral Lake and Besal?
NO, stay on dudipatsar is not recommended you stay on mulla ki basti and saral safe u can stay thr.
>>>>>>>>>5. What food should we carry? we are taking tin packed food right now.
Yes tinpacked food is best
and you can back jalkhod via noori top from saral no need to go mulla ki basti again