Gratuity to Teachers?

ARE TEACHERS COVERED UNDER GRATUITY ACT.  WHATS THE STATE OF THE GRATUITY AMENDMENT BILL 2007 & 2008.  IS IT PASSED OR NOT.  IF PASSED, WHETHER AN EMPLOYEE JOINED IN 2001 AND RESIGNED IN OCTOBER 2007 IS ELIGIBLE FOR GRATUITY.  I SAW ITS RETROSPECTIVE FROM JUN 2007.  WHAT DOES IT MEAN. 

COULD ANYONE THROW LIGHT ON THE ABOVE QUERY.

THANKS IN ADVANCE

SRIVATSAN.