I have a certain amount on which I have already given khums last year. I still have that savings with me so is khums applicable on it or not?
For example ; I have 50000RS from which 10000 is from last year and I have already given a khums on it. So for now how much I will consider for khums?

No khums shall be on new savings or if the amount of last year becomes zero during the year and then you again get profit which is now actually an earning of this year, then khums shall be wajib this year.