Candidates who will appear for Engineering Services (Main) Examination, 2021 can download the admit card through the official site of UPSC--upsconline.gov.in. According to the official notification, the admit card will remain available to all candidates from October 28 to November 21, 2021. 🇮🇳 UPSC ESE Admit Card 2021 for Main Exam Released, Here’s How Candidates Can Download Hall Ticket at upsconline.gov.in.