Character Arc
D'Mello is part of the world that closes in around Costao Fernandes as his investigation deepens. Set against the customs officer's lonely stand, the character represents the network of interests and pressures that an honest official runs into the moment he refuses to play along, and that help turn Costao's pursuit of justice into a fight for his own survival.
Within the film's grounded, true-story framing, D'Mello functions as one of the human faces of the forces arrayed against Costao rather than a cartoon villain. His presence raises the stakes and sharpens the film's central question of how far powerful people will go to protect a profitable operation, and how much an incorruptible officer must endure to stand against them.
Kishore Kumar G brings this antagonistic energy in a restrained register that suits the film's understated tone, reinforcing the sense that the danger Costao faces is woven into ordinary life rather than staged as spectacle. Specific plot details for this role should be confirmed against the film. (AI-authored, flagged for fact-check; supporting-character details uncertain.)