Sanjay Kishan Kaul, J.

1. The subject matter of dispute in the present cases is the ground floor of a commercial property on a plot area measuring 92.78 sq.yds. bearing No.23, Defence Colony Market, New Delhi-110024. The leasehold rights in the plot are stated to have been transferred by the Settlement Officer (G.P.B.) Jam Nagar House in favour of one Shri Hans Raj vide a perpetual lease deed dated 31.1.1964. Shri Hans Raj in turn sold the property to Shrimati Raj Kumari Garg, appellant herein, vide sale deed dated 27.8.1974. She raised construction on the same by converting the property to a basement, ground floor, first floor and second floor. The property was mutated in her name by the L&DO vide Mutation letter dated 19.12.1974. The land use is stated to have been changed from residential to commercial in pursuance of a supplement deed dated 18.3.1980 executed in her favour by the L&DO.

2. Shrimati Raj Kumari Garg entered into an agreement to sell & purchase dated 7.7.1998, which is a registered document, qua the ground floor of the said property in favour of Shri Dinesh Gupta and Shrimati Nirmala Gupta, mother of Shri Dinesh Gupta (respondents 3 & 4 herein). The agr