Option 1 is correct because the `Swarna Jayanti Shahari Rozgar Yojana` is indeed a self-employment initiative aimed at providing gainful employment to the urban unemployed or underemployed poor through encouraging the setting up of self-employment ventures or provision of wage employment.

Option 2 is also correct. Both the Drought-Prone Area Programme (DPAP) and the Desert Development Programme (DDP) were launched in the 1970s to tackle the problems created by drought and desertification.

Option 4 is likewise correct. The `Swarna Jayanti Gram Swarozgar Yojana` is an integrated scheme for self-employment of rural poor that came into effect from 1st April 1999.

Option 3, the provided correct answer, is indeed incorrect. While the `Sampoorna Grameen Rozgar Yojana` did take effect in the year 2001, it was not launched after restructuring the `Integrated Rural Development Programme`. Rather, it was created by merging other employment generation schemes like Employment Assurance Scheme (EAS) and Jawahar Rozgar Yojana (JRY). Thus, this statement is false.