Thank you for your query.
I think you need calculation of your BMI first and then a diet plan
can be suggested for you . One diet plan does not work for everyone it needs to be individualised .
Regular resistant exercises will help you build muscles . You shoul follow healthy diet rather then going for supplements as they can harm your body .
Hope you are satisfied with the answer.
If you have any further queries feel free to ask.
Wish you good health.