Resident — stagnation of water

There is very heavy stagnation of rain water on the terrace of a room constructed in the back side of the flat No. DG2, 291C, Vikas Puri, New Delhi for the past few weeks which is a breeding ground for mosquitoes. The water outlet in the terrace is completely blocked. Approached the owner about this but all in vain. As in this season so many cases of dengue chikunguniya n malaria are reported, it is requested that the matter may please be taken up on priority basis. An expeditious action is solicited in the matter.