How to use aswaganda powder(ammukkuram)?

   I am a 27yr old male. i want to gain weight. so i am using ammukuram(aswaganda) powder with milk morning and evening. anybody pls tell me how to use it. bfor food or after food?? pls explain me the details.

If you take exercise daily then it must be effective

Take this powder with cow milk 2 to 3 gm

and avoid oily food and tea