80-D Deduction

My Father is a retired SBI officer. he has paid 1.25 lacs mediclaim premium for sum assured of 10 lacs for a period of 10 years. This policy is provided by SBI for staff welfare.
whether 80-D deduction is available? if yes then whether the premium deduction can be claimed over the period of cover i.e.10 years ?


Thanks in Advance.