A few days before the third session of JEE-Main, the coveted engineering entrance examination was to be held in July this year, a Patna resident Ritesh Jha (name changed) received an unusual call. “Do you want your son to get admission to any top NIT (National Institute of Technology) of your choice?” the caller asked. “We ensure admission of students to all the top government and private engineering colleges. If you are interested, your ward has to fill the form under our guidance.”