Question

how do jumman shiekh and alagu maintain dignity of their roles as judges in the story "god lives in the panch"

Answer 1

Jumman Sheikh was a very bad person because his aunt his aunt had a plot of land in her name and Jumman feed her well, he respected her and behaved well with her. But when the aunt made the plot to his name he ill treated her and did not give her food.
Jumman had a good friend named Algu who was a Hindu but still he had maintained his frienship with him. Though they were of two different religion their thinking mached. This shows that he is tolerant towards people of other religion.
Jumman inspite of his behaviour towards his aunt has a great sense of understanding. Instances from the story proves this fact, when Jumman’s aunt called the Panchayat; Algu was one of the Panchs. Jumman thought his friend would take his side but he did not. Jumman was angry and wanted to take revenge, but he lacked oppurtunity. He got the oppurtunity to be one of the Panchs when the Panchaya was called against Algu; inspite of his thought of taking revenge. Jumman took the side of Algu as he was right.
Atlast Jumman is a changed man, realising his responsibility and his mistake as a member of Panch. 

Answer 2

Both Jumman and Alagu had to perform their duties as Panches on separate occasions.They both had to deliver justice ,putting aside their feelings and speaking only the truth.Alagu had to make a difficult choice of going against his childhood friend but still he did what was right thus upholding the dignity of his role as a judge. Jumman too delivered justice under similar conditions ,the only difference being that Jumman had to put aside feelings of hatred ( towards Alagu)...and Alagu that of love ( towards Jumman).Jumman too gave his decision impartially thus proving that the Panch indeeds speaks the voice of God.