Clarity for rulo of gratuity

Dear Sir,

I joined my previous company on 16th Aug, 2010 and resigned on 30th June 2016. I have completed 5 years 10 months but my gratuity amount was calculated and given to me of 5 years.

Now I just want to clear whether I should go ahead and claim for 10 months gratuity amount. I want your help sir.

Thanks & Regards,

Barun Kumar Guha