Since your father is a pensioner, you cant include your parents as beneficiary. Your father should enroll himself to the scheme including your mother as beneficiary before 31.03.2013. This is the last opportunity has been given by the Govt . Click the link below for the latest extention order. https://wbxpress.com/extension-of-enrolm … 1-03-2013/
But I have heard that those pensioner whose basic is below 3500/- (previously this was 1500/-) then they can include themselves in the WBHS with their son in condition with that they will deduct the Rs. 300/- under MA. I will give you the GO No. as soon as possible.