Get affordable fares for Dehradun to Mahendragarh-Haryana taxi at Bookcab that starts from Rs . Cost per km ranges from INR and . No hidden charges and transparent pricing policy at Bookcab. Clear breakup of extras. BookCab has premium, luxury and affordable A/c and non A/c cars. Bookcab Fleet consists of Mercedes Benz car hire, Toyota Innova car hire etc. Find luxurious and affordable cars in our wide range fleet of cars and their fare details from Dehradun to Mahendragarh-Haryana. The distance between Dehradun and Mahendragarh-Haryana is 339 km. Journey time for Dehradun to Mahendragarh-Haryana would be approximately 5 hours 57 mins.