I have a chicken pox mark on my face. Can I remove it by surgery? How much it will cost in Mumbai?

Chicken pox scars on the face can sometimes be improved by surgically excising them.  An examination, or at least photographs of you would be needed to determine if surgical excision might be a good treatment option for your chicken pox scar.  

If it's a depressed scar then fat grafting can help to level it and also improve the colour and texture. However final decision can be taken only after examining in person or seeing a photograph.