DGGI is probing potential tax evasion of ₹850 crore by large coaching centres in 2020-21 and 2021-22. Officials suggest misdeclaration of enrolments and non-payment of tax after collection. The investigation, initiated in January 2023, targets numerous coaching centres across India. Around 145 large and mid-sized centres are under scrutiny, including those for medical, engineering, and entrance exams like IELTS and GRE.