Name this song please? Mastana?

Hi an Afghan singer remade an Indian song, here is a link to listen to the song, can someone please tell me the name of the original Hindi version and who sang it so I can find that one? Thank you. Such a beautiful song.

www.afghanmusik.info/musik/Haidar%20Salim/parwana/10%20-%20A z%20Masti%20Chashman.mp3


P.S. As a bonus, could someone explain what the lyrics are saying? Thanks.

sorry here's the right link!

www.afghanmusik.com/pafiledb.php?action=download&id=1655

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