Minimum Period For Gratuity

hi,
I have completed 5 years in June 2013 and resigned from the company in november 2013, in between(in 2010) I took Leave without pay as I was sick . Now, they are saying that it being 150 days less in 5 years for gratuity, so I cannot claim gratuity amount. I want to know that a leave without pay in continous service reduces the gratuity tenure.
Thanks & Regards,
Ruchi

From "Thiyagu" : I have seen Gratuity act for the minimum period to serve in a company is not less than five year service for get gratuity.
but some people are told gratuity eligible for if minimum available 4 years 240 days can round up the five year but yet not get pdf for proof the eligible for 4 years 240 days kindly share the pdf if available means.