In pics: Prayers, last-minute revision as class 12 exam begins in Tamil Nadu

Security guard check temperature and gives hand sanitizer to students as they enter examination hall premises in Coimbatore - Photo: Jackson Johnson/TOI

Ahead of examination, a girl student was seen doing revision - Photo: B A Raju/TOI

Prayers! Some girl student pray ahead of writing exam - Photo: B A Raju/TOI

28,353 private students and 3,638 students with disabilities will appear for the board examinations from Thursday - Photo: B A Raju/TOI

More than 46,000 students from Chennai write the exams in 167 centres - Photo: B A Raju/TOI

As many as 5.03 lakh students are appearing in the science stream and 47, 882 students from the vocational stream. 2.70 lakh students are appearing from the commerce stream and 14,885 students from the arts stream - Photo: B A Raju/TOI

A total of 4,291 flying squads will carry out inspections during the examination - Photo: B A Raju/TOI