Multivitamins are always good for you. But, if you are a non-vegetarian, you should consider taking considerable amounts of lean meat and eggs too. Because, these are processed and used in our body to meet a wide range of requirements which include vitamins.
Also, vegetables are also fine. Carrots, beetroots etc etc. If you feel tired, maybe you should check your blood sugar level also. Include potatoes and sweetened drinks in your breakfast.
Pls don't rely solely on multivitamins from markets. If your tiredness persists too long, i advise you to consult a physician and have a check on your blood levels for different nutrients.
Hope that helps,