allotment letter and the price of the plot. The re-allotment letter dated 28.8.1998 (Annexure P-4) was issued in favour of the petitioners. Vide letter dated 28.2.2002, respondent No.2 asked the petitioners to make the payment of 79,870/- on account of enhanced compensation and further vide demand notice dated 27.12.2007 (Annexure P-6) raised a demand of 1,86,018/-. The petitioners requested respondent No.2 to supply a calculation sheet of enhanced compensation of their plot to them which was supplied to them vide letter dated 6.4.2009 (Annexure P-7). The petitioners made a payment of 4,60,000/- along with interest as demanded by respondent No.2 and thereafter, they were issued a 'No Dues Certificate' dated 17.4.2017 (Annexure P-8). The Supreme Court vide order dated 21.4.2010 passed in Civil Appeal No. 3677 of 2010, awarded 225/- per square yard as compensation for the entire acquired land along with all statutory benefits. In pursuance thereto, respondent No.2 made the payment of enhanced compensation and all statutory benefits to the landowners on or before the year 2010 itself. Respondent No.2 vide demand notice dated 25.10.2017 and calculation sheet (Annexure P-9) raised a demand of 11,45,424/- along with interest @ 15% per annum as additional price at the rate of 3409/- per square yard from the petitioners. The petitioners sent a reply dated 7.12.2017 (Annexure P-10) to the said demand notice to respondent No.2, but no response has been received till date. Hence, the present writ petition.