Is it illegal to rent a car by Didi to conceal the actual mileage?

Illegal. Official website of Didi Chuxing Technology Co., Ltd. shows that it is illegal for Didi Chuxing to conceal the actual mileage. If the amount is large, it constitutes a crime of fraud, and it is sentenced to several years in prison and fined. Didi Global Co., Ltd. is an outstanding mobile travel technology platform in the world, providing diversified travel services such as online car booking, taxi calling, driving and hitchhiking in Asia-Pacific, Latin America, Africa and other markets, and operating car service, take-away, freight and financial services.