New Delhi. In the midst of PM Modi's degree controversy, Delhi Chief Minister Arvind Kejriwal has written a letter to Prime Minister Narendra Modi. Through this letter, he has appealed to PM Modi to resume the concession given to senior citizens in railway fares. Kejriwal wrote that crores of railway passengers were benefited from this exemption, but due to the discontinuation of this exemption, the elderly are upset. Explain that during the Kovid epidemic (Covid-19), the Railways had stopped all kinds of discounts available to the passengers. Since then some concessions were introduced, but the exemption given to the elderly was not stopped.