I am the tenant of government-owned non-residential premises. What will happen on the expiry of the lease? Am I entitled to a renewal of lease once the original term expires?

No, you are not automatically entitled to have the lease renewed, since Government enjoys special powers not to renew the lease. Nevertheless, provided the lease you hold is for a period exceeding one year, then upon expiry, you may (at Lands Authority discretion) be granted a new lease under identical conditions except for the rent which will be fixed by Lands Authority at the time of reletting. There will be no need for a new call for tenders.Lands Authority may however renew the lease if it deems it expedient.