The infant was found late last evening, Assistant Police Inspector G K Matondkar of Ganeshpuri police station said.
Officials said the child was half buried. Since dogs were barking in the area, passers-by went to the spot and heard him crying, following which they informed police.
A police team rushed to the spot and rescued the child, weighing around 2 kilo grams. He is admitted to a government hospital in Bhiwandi and his condition is stated to be normal, he said.
Efforts are on to trace the persons who abandoned the infant, police said.
