WATCH: Indian authorities demolish illegal skyscrapers

STORY: Around 3,700 kg of explosives were used to bring down the Supertech Twin Towers, located in Noida on the outskirts of capital New Delhi, in less than 10 seconds.

Scores of police and emergency personnel were deployed for the operation on the 103-meter (338-feet) tall towers, which had 850 unoccupied apartments.

Despite rampant illegal building in India's cities, demolitions of large buildings are rare. The blast will leave over 80,000 tons of rubble and most of it will be used to fill the site while the rest will be recycled.