How absolute is Slumdog Millionaire?

I've been munching on this thought for quite sometime- On what parameter, is it justified that Slumdog millionaire portrays the real India?

I would wish for some statistical data. What percentage of Indian's live in the slums? Then we can conclude with the above statement.

I would not defy this so-called acclamation if it was said that this is also an aspect to multifaceted India. I think its absolute, and nothing really is absolute. And its not complacence that makes me defy that statement. There are just too many facets to India to narrow it down to slum-children from Dharavi in the streets of Mumbai.

Though, even to me an overall perspective of India is very gloomy, its too overriding a statement that Slumdog Millionaire portrays the real India.