Criminals Generating and floating Mosquito's in Tamil Nadu and Authorities keeping quite oin this over a fortnight is a Shock to People in Chennai Metro city in India?

Criminals Generating and floating Mosquito's in Tamil Nadu and Authorities keeping quite oin this over a fortnight  is a Shock to People in Chennai Metro city in India?

in Chennai City , please to note as an unusual  incident Mosquito's fly in Huge Quantity  6P.M. to 5 A.M.  Due to summer started possibility of Mosquito's is very remote, why because Corporation of Chennai  and  sewerage department were working properly!. Drainage problem's were attended very quickly. Corporation worker's work's well in maintaining the city clean.
So,This is shocking to People. Mosquito's repellent's were not working .By 1.45P.M. and 2.05 /2.10 A.M. few flights were flying very low in the sky. The sound is miserable ,also makes us to think is their any criminal acts to generate Mosquito's top spoil the lives in Chennai?  
In thise days when rain is wanted on few ocassions by using chemical;'s spread in the sky Rain Generated. similarly is their any work by criminals to spoil the social life of people in Chennai has to be monitored and investigated urgently by Health Department and Corporation Of Chennai.

In our area we could not see the anti mosquito smoke spread by corporation of Chennai. Few days back once after a very Long Gap this anti mosquito smoke spread  took place but immediately after smoke spread ,Government workers engaged for that were demanding bribe is painful to watch.
Humble request to Selvi J.Jayalalithaa , as a Amma, may please revert with a quick action to support people in this issue to solve this problem? 
May please arrange to find how this sudden Mosquito's fly happened in Chennai city in Huge Quantity? and why Corporation of Chennai Health Department worker's hesitate to work  is a surprise?.
Thanks.