https://gainingsun.com/daily-upsc-current-affairs/environment/2026-05-14/asola-bhatti-wildlife-sanctuary-prosopis-juliflora-invasive-species-aravalli-management-plan GainingSun en 2026-05-14 Asola Bhatti Sanctuary in Crisis: Why Invasive Vilayati Kikar (Prosopis Juliflora) Covers 63.48% of Delhi's Only Wildlife Sanctuary – Explained current affairs, Environment, UPSC, civil services 1.0