Hey Nikita,
Best hostel in Jodhpur is Zostel as I had stayed there in January. It is located very to near clock tower and at a walking distance from Toorji ka Jhalra. Mehrangarh fort can be seen from the rooftop of zostel. Ranisar & Padamsar lakes are nearby, if you walk then it would take 10-15 mins, or you could take an auto rickshaw.
Book your room or hotels from OYO. It will give you the best room at affordable prices. And, if you want any discount or cashback also then apply the OYO coupons and offers. You can find all the coupons and offers of oyo and any other hotels from OffersAtHome website. Just visit the below link:
https://www.offersathome.com/store/oyo-coupons/