Hyderabad is staring at a drinking water crisis as Osmansagar and Himay-atsagar are fast drying up. The water available in the two reservoirs will be sufficient up to May only through gravity . After May, water will reach dead storage levels forcing officials to use high power motors to pump water. However, the water quality is not good at the dead storage level as citizens had complained of foul odour and coloured water supply from the two reservoirs.