Telegram was found guilty of committing an administrative offence for failing to restrict access to information when such restriction is required by Russian law, the court said in a statement, Xinhua news agency reported.
The court did not specify the prohibited information that led to the fine. Last month, Telegram was fined 4 million rubles for a similar offence.
With approximately 900 million subscribers, Telegram is now one of the world's leading messaging platforms and influential in Russia.