"I. semipalmata" breeds and lays clutches of eggs on wet rocks and the bark of fallen trees during the monsoon season. In a study in 2010 in the Agumbe Rainforest Research Station (ARRS), Karnataka, India, the eggs had an average diameter of . Each clutch had an average of 343 eggs. Adult males were also observed near the egg clutches, presumably guarding them. Like most of the other members of the subfamily Ranixalinae, the tadpoles are non-aquatic. Upon hatching, the tadpoles remain on the moist surfaces, undergoing metamorphosis without ever entering any standing bodies of water. In the 2010 study, all of the egg clutches and the tadpoles were found at least from the nearest pool of water. The eggs and tadpoles are instead kept moist by dripping water from leaves and rainfall.