( 1 ) IN this appeal under Clause 10 of the Letters Patent, judgment of learned Single Judge dated 19. 4. 2000 in C. W. P. No. 2532/95 is under challenge.

( 2 ) FACTUAL position, which is almost undisputed is as follows: A demand was made by the Delhi Development Authority (in short the DDA) from the petitioner Society for an amount of Rs. 3,19,554. 35 as additional cost of the land allotted to it. The said demand was challenged and a prayer was made for a direction to the DDA to calculate the cost of land payable in the light of judgment in DDA v. Lala Amur Nath Educational and Human Society, 42 (1990) DLT 651. Petitioner pleaded in the writ petition that if is Society registered under the Societies Registration Act with the object of working for welfare, education and betterment of the children. With the aforesaid objective, it intended to start a middle school for providing education to the weaker sections of the society. It obtained an essentiality certificate from the Directorate of Education in 1989. Its name was sponsored for allotment of land by the Directorate of Education of Delhi. On the basis thereof, the DDA by letter dated 11. 2. 1991 allotted a land to