Following the instructions of Noida authority CEO Sanjiv Saran, a sealing drive was launched today during which officials found an office being operated from a flat.
The team also detected a guest house functioning from a residential building, officials said, adding both the premises were sealed.
Meanwhile, fearing action from Noida authority, a majority of the commercial establishments operating from residential plots kept their shutters down.
Officials have identified as many as 20 residential areas in Noida sector 34 which are involved in unauthorised activities, department sources said.
The list includes two clinic, two guest houses, one ATM, a commercial guest house, four offices and 10 shops operating from residential areas, they added.
