I totally agree with Dr Gajanan and Dr Yogesh.
You should consult with proper history and examination to find out the cause of darkness.
Next Steps
In general, You may use milk as cleanser and kumkumadi tail/ cream at night.
Take plenty of fluids and fresh fruits.
Health Tips
As it is products of lotus or any other brand, no one can say what will b good for your skin because all these are chemical based.