Parvardigaara (Devanagari:परवरदिगारा) is nothing but parvardigaar, which is a Farsi (and subsequently Urdu) word, and means the Provider, the Supreme Being, or simply, God.
In the Hindi film Fitoor, there is a song that uses the word Parvardigaara, though these days the use of the word in Hindi has come down. I remember the word being used in older movies like Khuda Gawaah.
The Meaning of Fitoor can be found HERE.