Explanation:

Indra Sawhney Case 1992

The 27% reservation quota for backward classes and the government notification reserving 10% government jobs for economically backward classes among the higher castes was challenged in the Supreme Court in the Indra Sawhney Case of 1992. On 16 November 1992 the Supreme Court upheld the Mandal Commission’s 27 percent quota for backward classes, as well as the principle that the combined scheduled-caste, scheduled-tribe, and backward-class beneficiaries should not exceed 50 percent of India’s population. At the same time, court also struck down the government notification reserving 10% government jobs for economically backward classes among the higher castes.