I think the word handicap should not be used, it should be differently abled person, as it is against law to use the word handicap. 

See the subsequent lines in the intro of the thread. You can see the word, "Differntly abled".

Her spirit is commendable, few can do what she has achieved.

Kalyani Nandurkar wrote:

Her spirit is commendable, few can do what she has achieved.

 

A will as strong as steel, perseverance and refusal to bowdown to the adversities will do the magic. True, very less people can achieve what she achieved.

Great achievement!!..... Confidence, determination and strong will power are her plus points that make the impossible possible. 

Achievers all over the world like Thomas Alva Edison, despite their disabilities achieved what they wanted to achieve in their life with grit.

Hawkins having differently abled performed rare scientific innovations. 

There are several examples from Thomas Ava Edison to Albert Einsten who redrafted their destiny despite their disabilities.

Google's driverless car would be helping differently abled person.Google accessibility feature is being hand made for differently abled person to create innovations in different walks of life of differently abled person. 

Despite all the amenities available amenities available for these differently abled persons, there are still people with deficiencies in their body because they lack the WILL to fight against adversities. So it is obvious it is the strong will of the concerned matters. Nothing else.