A woman tends to a baby sleeping in a hanging cot in the living room of a flat in an illegal building located next to the site of a building which collapsed last week in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY) 

Aslamkhan Bikankha, 28, (C) walks up the staircase in an illegal building in which he lives in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY TPX IMAGES OF THE DAY) 

Sania, 25, sits underneath a line of clothes hung up to dry in the living room of their flat in an illegal building located next to the site of a building which collapsed last week, in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY TPX IMAGES OF THE DAY) 

Two children stand in the hallway of a flat in an illegal building located next to site of a building which collapsed last week in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY) 

Reshma Ansari, 20, sits with her seven-month-old baby Muntasha in her lap in the living room of a flat in an illegal building located next to the site of a building which collapsed last week in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY) 

Afreen (R), 12, sits as her niece Anam, 2, sleeps on a mattress on the floor of their flat in an illegal building in which he lives in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY) 

People walk past an illegal building which was demolished in the "Lucky Compound", where a building collapsed last week, in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY) 

An illegal building which was demolished in the "Lucky Compound", where a building collapsed last week, is pictured in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY) 

An elevated view shows illegal buildings (painted white) in the Bholenath Nagar area in Thane district on the outskirts of Mumbai April 10, 2013. A shortage of affordable housing in Indian cities has led to rampant illegal construction by developers using cheap materials and shoddy methods in order to offer low-cost homes to low-paid workers, paying bribes to officials to turn a blind eye. Despite several promises by the government to build affordable homes for India's poor in densely populated cities, the country's urban housing shortage is estimated at nearly 19 million households. That lack of affordable housing is especially acute in Mumbai, India's financial capital and home to some of the world's costliest real estate, where an estimated six out of every 10 people live in slums. Picture taken April 10, 2013. REUTERS/Vivek Prakash (INDIA - Tags: SOCIETY)