Some Ulama and I repeat...only a few Ulama in India did accept machine slaughtered chicken to be Halal. Majority said it's not Halal. Here's info on it in Urdu: Urdu Fatwa book Na ay Masail or Ulamaay Hind Kay Faislay: http://ifa-india.org/download/faisle.pdf and the discussion is on page#179 of the book and page#169 of the Pdf.