Prolonged monsoon has created a favourable conditions for mosquito breeding, and as a result, Mumbai is registering a rise in dengue cases, according to the BMC's data. City doctors are concerned, as some patients have been hospitalised with unusual complications, like seizures, internal bleeding and lung injuries. 

According to the BMC health department's data, the city registered 78 dengue cases in nine days, from October 1 to 9, recording an average of eight cases a day. In the next seven days, from October 10 to 16, the city reported 178 cases—an average of 25 cases a day.