Who among the following CA's has his/her office on the lowermost floor?

Charul’s secretary is C and his office is on 6 th floor. Charul's office is above Etti's office with a difference of one floor between them. Using the given hints we can draw a following table: The one whose secretary is A has his office on the top floor. There is a gap of two floors between the one whose secretary is D and the one whose secretary is A. With the given hint we can fix the position of A and D in the table. Deepa has his office on an odd numbered floor above the one whose secretary is F and the number of floor between them is one. At this point there is only one floor left on which we can fix the position of Deepa under the given conditions. After using the above information our table looks like this: