The present invention disclosed herein a stable topical pharmaceutical composition comprising micronized Gabapentin dispersed in paraffin base, optionally in combination with one or more other active ingredients selected from at least one non-steroidal anti- inflammatory drug (NSAID) and phyto-constituents, useful in relieving neuropathic pain or neuropathy related disorders such as Diabetic peripheral Neuropathy, Spondolysis, Neuropathy of other origin, Low back pain, Ankylosing Spondylitis, sciatica, pain related to joint and bone disorders like arthritis, osteoarthritis, rheumatoid arthritis, and low back pain of varied etiology. The present invention also disclosed a process for preparation of said stable topical pharmaceutical composition.