It is only where for any reason it is not possible to determine the standard rent of any premises on the principles set forth in Section 6 that the standard rent may be fixed under sub section (4) of Section 9 and merely because the owner does not produce satisfactory evidence showing what was the reasonable cost of construction of the premises or the market price of the laud at the date of commencement of the construction, it cannot be said that it is not possible to determine the standard rent on the principles set out in sub section (I) (A) (2) (b) or (I) (B) (2) (b) of Section 6 Take for example a case where the owner produces evidence which is found to be incorrect or which does not appear to be satisfactory; Can the assessing authorities in such a case resort to sub section(4) of Section 9 stating that it is not possible to determine the standard rent on the principles set out in sub section (I) (A) (2) (b) or (1) (B) (2) (b) of Section 6.