The ban for Zoysa is backdated to October 31, 2018, when he was provisionally suspended.
The two officers had diverted money for months to bank accounts they had access to, Manorama News reported.
Items worth Rs 11,33,777/- were found to be missing in the canteen stock. They were reportedly bought during 2018-19.
The Question Hour, which normally witnesses brief questions of members and prepared answers of ministers, on Tuesday turned out to be just like an Assembly discussion where members traded charges and counter charges.