I arrived around 4 in the noon on 6th April in the city. I took rikshaw to my hotel. Got freshener up. I went to explore the city. As I booked my hotel in the city center, it was easy for me to just walk up to the mehrangarh fort.
( Note - Always try to book hotel or your stay near the city centre. That will help you to reduce the transportation cost up to some extent.)
I wandered through the streets of jodhpur as Google guided me that fort was only 1.2 km away. Many time I deliberately took detours just to explore blue streets and blue houses, those cozy but old street shops, eating places.