RESPECTED FROM JAN 1 2004 ALL CENTRAL GOV EMPLOYEE ARE IN NPS BUT THOSE STATES SUCH AS WEST BENGAL WHO ARE NOT OPTED NPS TILL NOW. EMPLOYEE WHO ARE APPOINTED 2005 IN WEST BENGAL WILL BE IN NPS OR NOT IF NPS BILL PASS IN LOKSABHA OR RAJYASABHA 2011 OR 2012.