Section 529(2) in The Calcutta Municipal Corporation Act, 1980
(2)Where any land is designated in an improvement scheme as subject to acquisition or is required by the scheme to be kept as an open space, then, if at the expiration of ten years from the date of sanction of the scheme by the State Government under sub-section (2) of section 530 the land is not acquired by the Municipal Commissioner, the owner of the land may serve on the Municipal Commissioner a notice requiring his interest in the land to be so acquired.
