The direction comes after the Delhi assembly in a recent communication to Dev flagged "violations of protocols" by government officers in responding to communications of public representatives.
Officers have also been asked by the chief secretary to first acknowledge a communication of a public representative by sending a letter, stating that they are working on the issues raised by him or her, the officials said.
"Every department has been asked to first acknowledge communication received from MPs, MLAs and VIPs, and then send a detailed reply to them within 15 days," an official said.
Some MLAs complained to Speaker Ram Niwas Goel that they were not getting replies to the communications sent by them, the official said.