( 1 ) IN response to the notice inviting tender for construction of telephone exchange building estimated cost of which was Rs. 69 4 748 sixty nine lakhs four thousand seven hundred forty eight) the petitioner a partnership firm filled in tender for total amount of Rs. 1 0 18 711. 5 ps. (One crore eighteen thousand seven hundred eleven and paise fifty) stating that on all items rebate of 4. 5% was to be given. Thus deducting the amount of rebate of Rs. 4 50 843. 36 ps. (Four lakhs fifty thousand eight hundred forty three and paise thirty six) the tender was for net amount of Rs. 95 67 898. 14 ps. (Ninetyfive lakhs sixtyseven thousand eight hundred ninetyeight and paise fourteen only ). The respondents considered the tender of the petitioner as being for Rs. 4 58 39 753. 2 ps. (Four crores fifty eight lakhs thirty nine thousand seven hundred fifty three and paise twenty only ). According to the department the petitioner had not quoted Rs. 19 0 (nineteen thousand) for supply and installation of two overhead syntex water tanks of 2000 liters capacity but it had quoted Rs. 3 80 0 0 (Three crores and eighty lakhs ). Therefore the department did not consider the petitione