Krishna Kumar (65) had been sitting on the pavement outside the General Post Office (GPO) working as the typist for the last 35 years, a senior officer said.
On pretext of "security movement", Incharge of the Secretariat Police outpost Sub Inspector Pradeep Kumar asked Kumar to vacate the place yesterday and even crushed the latter's typewriter under his boots.
The pleas of the elderly man went unheard and the SI continued with the act till the typewriter was completely smashed.
On his directive, SSP Rajesh Pandey suspended the SI and ordered an inquiry to be headed by the Circle Officer, Alambagh.
District Magistrate Rajshekhar and SSP Pandey later visited Kumar's house and handed over a typewriter to him.
The CM has asked the senior officers to train policemen in improving their behaviour while dealing with the public, the officer said.