An employee works for a civil organisation where his number of days is less then 240 days every year.He joined the organisation on 01.08.2005 and worked till 01.08.2012. but due to seasonal conditions,he was not able to complete 240 days in any year.he worked for 200 days, 225 days, 225 days,etc each year.He is on contract basis with organisation.Please let me know if he is eligible for gratuity and if yes then how much???