Planter fasciitis is a common cause of heel pain in adults. Planter fasciitis is frequently seen among athletes playing various sports. However, it is more prevalent in professional runner. The Biomechanical stresses including the increase in the intensity, frequency or the time frame of weight bearing activities that subject athlete's feet to continuous impact loads, surfaces with inadequate cushioning or improper shoe replacement are some of extrinsic risk factors associated with planter fasciitis.3-D ankle mobility exercises are improvised for treatment of plantar fasciitis, these comprise D2 diagonal PNF leg patterns, comprising of flexion-abduction-internal rotation and extension-adduction-external rotation. Heel drop exercise training is another useful intervention used for treating PF; the protocol consists transferring their body weight onto the forefoot of their dominant legs while slightly flexing their ankles. To get back to baseline, the non-dominant leg is given more weight, and the dominant leg's knee was remained fully extended to maintain higher gastrocnemius activation. A Randomized clinical trial will be conducted at Pakistan Sports Board and Boston Physiotherapy Clinic Lahore through consecutive sampling technique on patients which will be allocated through opaque sealed enveloped into Group A and Group B. Group A will be treated with 3-D ankle mobility exercises and Group B will be treated with eccentric heel drop training. Outcome measures tools will be conducted through NPRS, Foot and Ankle Ability Measure (FAAM) and The VISA-A questionnaire: An index of the severity of Achilles tendinopathy after four weeks. Data will be analyzed using SPSS software version 25. After assessing normality of data by Shapiro-wilk test, it will be decided either parametric or non-parametric test will be used within a group or between two groups.