Who is Rau's IAS owner Abhishek Gupta, arrested after three students died in coaching centre's basement?

Delhi police arrested Abhishek Gupta, CEO of Rau's IAS Study Circle, and coordinator Deshpal Singh after three UPSC aspirants died in the flooded basement of the coaching centre during heavy rainfall. The incident led to the sealing of 13 illegally operated coaching centre basements by the MCD. Investigations continue, with five more individuals arrested.