It is reported that 45% of the fire accidents in Hyderabad are due to short circuits and another 31% are due to lighted cigarette butts. As rightly pointed out by Addl Director of Disaster Response and Fire Services department, people tend to buy cheap quality electrical cables and equipment for buildings resulting in early damage leading to such fire incidents. It is common for investigators to conclude majority of fires to short circuit but the root cause lies in use of improper electrical wiring, switches, and other electrical fittings. Also, people fail to ensure checking the healthiness of cables and others in their building and one should remember that even the best will not come for life. It should be made mandatory to check the healthiness of electrical systems after first 15 years and thereafter once in every five years. It is better to change electrical fittings at regular periodicity, say once in 15 or 20 years. Insurance companies should not pay any compensation if the fire is due to short circuit and they should insist on certificate for healthiness of electrical systems before renewing the policies.
http://articles.timesofindia.indiatimes.com/2012-04-23/hyderabad/31386060_1_fire-accidents-fire-incidents-fire-safety