Aim: To find the effectiveness of dynamic neck exercises in patients with chronic mechanical neck pain. Objective: To determine the effectiveness of interferential therapy with dynamic neck exercises on pain and functional ability in patients with chronic mechanical neck pain. Methodology: A total of 30 patients were selected based of inclusion criteria they were randomized in to two groups 15 in each group A and group B. Outcome Measures: numerical pain rating scale and neck disability index used as outcome measures. Statistical Analysis: The collected data was tabulated and analyzed using inferential statistics to assess all the parameters mean and standard deviation was used. To find out significant changes within the group of pre and post-test by unpaired t-test was used. Results: Statistical Analysis of post-test, Numerical Pain Rating Scale (NPRS) and Neck Disablity Index (NDI) revealed that there is high statically significant difference seen between Group A and Group B. Conclusion: From the result, it has been concluded that Dynamic neck exercise with Interferential therapy (Group B) is more effective than Interferential therapy (Group A) in decreasing pain and improving the functional ability.