Following the decree issued by DoT, BSNL has informed all its pre-paid customers to submit a fresh CAF form along with four colour photographs, identity and address proof. The new machine numbered CAF will be available at customer service centre and telephone exchanges in rural areas. In case of students, employees of state/central government and PSUs, a fresh certificate of identity and address proof issued by head of office/institution will also be accepted. Serving officers, jawans and their family members can also obtain the same proof from their respective COs. The last of verification has been fixed on March 31, 2011.