How Long a Tenant should be kept?

does anyone have any idea in India how long one can keep the tenant. I was told after living in the same property some years the tenant can claim the property. is that true, if so, how many years is a safe period?
thanks for your response
I am aware of 11 months contract but how many years it is safe to keep the same tenant. I heard after some years, the tenant can claim the property, is that true?