It Raman gets the highest, Vicky should be ranked not lower than

Vicky > Priya
Priya > Ankit
One of them is true- Raman is highest or Tony is least or Sunil got highest and Deepak got least.
Now or each and every question we have different case-
If Raman Sunil got the highest, then Tony will get least and be ranked 7th.
Now since Priya and Ankit are always ranked numerically highest than Vicky.
Hence, Vicky can never be ranked lower than 4th.