Neroca, who survived anxious moments in the second half after they dominated the first half, scored from a penalty through Felix Chidi in the 22 minute.
Churchill Brothers, who were looking for their fourth successive, win came back strongly in the second half. They dominated their rival and had ample of chances to win but failed to get past the rival keeper Bishorjit and defence led by Gouramangi Singh, who denied them the equaliser.
Neroca, who lost back to back matches, needed a win to keep themselves close to leaders Minerva Punjab in the title race.
They looked more organised in their attack as they held midfield superiority and had a first chance to take lead in the ninth minute when Pritam Singh, who found space on the left, essayed a firm shot on the run which rival keeper James Kithan managed to block.
Churchill Brothers, who were looking for their fourth successive victory, failed to play a collective game.
Neroca survived dangerously towards the end as Churchill Brothers created several chances but Kalu, Koffi failed to cash on the opportunities.
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