Officials suspect the fire might have been sparked off by a carelessly thrown lit cigarette butt or a short circuit
The incident happened around noon, according the fire officials who were the first to reach the spot followed by the GHMC Disaster Response Force.
Two fire tenders from Malakpet fire station reached the spot and doused the flames.
A colourless, odourless liquid, it is used as a chemical weapon due to its extreme potency as a nerve agent.
The firemen placed an iron ladder in the drain and one of them got down through the ladder and brought the child outside.
Fire officials led by district fire officer T Venkanna, created awareness among management and staff of the Maitri hostel about measures to be taken if there was fire accident
Six teams, including from the Patancheru and Sangareddy Fire Stations, were deployed on the spot to carry out the fire fighting.