Subsection 1(A)(1)(a) of Section 6 has also no relevance for our purpose since it deals with the case of residential premises which have been let out at any time on or after 2nd June, 1944 and in respect of which rent has been fixed under the Delhi and Ajmer Merwara Rent Control Act, 1947 or the Delhi and Ajmer Rent Control Act, 1952, which is not the case in respect of any of the residential buildings forming the subject matter of the present writ petitions and appeals Section 6 sub section 1(A)(2)(b) is however 'material and we may, therefore set it out in extenso: Section 6 (1) Subject to provisions of sub section (2) 'standard rent ' in relation to any premises means (A) in the case of residential premises (2) where such premises have been let out at any time on or after the 2nd day of June, 1944, 458 (b) in any other case, the rent calculated on the basis of seven and one half per cent, per annum of the aggregate amount of the reasonable cost of construction and the market price of the land comprised in the premises on the date of the commencement of the construction: Provided that where the rent so calculated exceeds twelve hundred rupees per annum, this clause shall have effect as If for the words "seven and one half per cent", the words "eight and one fourth per cent." had been substituted; Though we are not concerned with non residential premises we may point out that in respect of non residential premises which have been let out at any time on or after 2nd June, 1944 and in respect of which rent has not been fixed under the Delhi and Ajmer Merwara Rent Control Act, 1947, or the Delhi and Ajmer Rent Control Act, 1952, standard rent is required to be calculated on the same basis as set out in sub section (1)(A)(2) (b) of Section 6 with only this difference that instead of the rent being calculated at the rate of 8 114 per cent as laid down in that provision, it is required to be calculated at the rate of 8 518 per cent.