IITB refuted the data and pointed out HT's data analysis issues [0]
HT didn't take into account students applying for grad school, UPSC/Civil Service, or off campus recruiting.
All HT's data said was only 57% of students decided to use campus placement services. The rest either used off campus services or are applying to grad school or the civil service.
The actual number is around 6%, which is the norm based on past cycles.