Lucknow Nagar Nigam — mad dog in locality

Respected sir/mam
I have a mad dog in my colony, this dog is having some disease due to which no dog attacks him and on the other hand he is attacking every other one including small dogs that have lasted somehow, he mostly attacks all these small dogs and is tearing them apart,, please do something about it as it has become a problem and he also has killed a puppy today, i hope this site reacts faster than he kills the other left although i try to save them for most of the times but i see that he attacks mostly at nights, so it's a major problem for the safety and security, pls see to it.