In a written reply to the Lok Sabha, Minister of State for Railways, Rajen Gohain said that "regular inspections are done by food safety officials" to maintain the quality of food served on trains and railway stations.
"Regular inspections are done by food safety officers and joint food safety commissioners. Food samples are collected and sent for analysis in accredited laboratories under the Food Safety and Standards Act by food safety officers. Surprise checks and special drives are also carried out by joint food safety commissioners," he said.
In reply to a separate question, Gohain informed the House that the railways had received 27,782 complaints relating to catering services during the same period (2014-17), with 648 of them about lack of hygiene.
The national transporter serves a record 11 lakh meals a day.
The railways had received a slew of complaints last year regarding the quality of food served on trains, forcing the ministry to bring out a revised catering policy.