Hello friend,
The benfits provided by organization which will be due at the time of retirment - for example Provident Fund, Superannuation and in case company has its pension scheme - can be considered as retiral benefit. While gratuity is applicable on completion of 5 years of service and is paid to employee when he/she leaves the organization - however this also can be considered as retiral benefit as this is paid when an employee retires from organization and not in between.
regards
nishikant