Singer of "Will u marry me" song

I've a question from the day I hear the song "will u marry me".... 

Who is the singer??? 

Can anyone tell me??? 

Its so heart touching... 

From You tube, I got to know that it was originally sang by Abrar Quazi himself....

is it true???? If yes, I must say, he is multi talented. 😎👏

Dont knw but yh it's a beautiful song 

I think Siddharth Slathia. Don't know him, even I found his name in YouTube.