No the value of 48 you told is right, reason is that 48 being the value as defined & nomited by the Govt, then No other valuation can exceed such value, as Suppose if the Assi would have considered 50C value 48 in his computation then Dept had no powers too challenge or change such valus. Now suppose in our above gvn case if the VO value would have been 47 then the value which the AO would have taken wud have been 47 as that is less then the 50C & again the 50c is not challenged by asse. I hope things are a bit clear to you